diff --git a/scripts/manage_translations.py b/scripts/manage_translations.py
index f79b2fc8..07a20608 100644
--- a/scripts/manage_translations.py
+++ b/scripts/manage_translations.py
@@ -55,6 +55,7 @@ def _get_locale_dirs(resources):
             print("You have specified some unknown resources. "
                   "Available resource names are: {0}".format(", ".join(res_names)))
             exit(1)
+
     return dirs
 
 
@@ -155,7 +156,7 @@ def fetch(resources=None, languages=None):
         # Transifex pull
         if languages is None:
             call("tx pull -r {res} -a -f  --minimum-perc=5".format(res=_tx_resource_for_name(name)), shell=True)
-            languages = sorted([d for d in os.listdir(dir_) if not d.startswith("_") and d != "en"])
+            languages = sorted([d for d in os.listdir(dir_) if not d.startswith("_") and os.path.isdir(os.path.join(dir_, d)) and d != "en"])
         else:
             for lang in languages:
                 call("tx pull -r {res} -f -l {lang}".format(res=_tx_resource_for_name(name), lang=lang), shell=True)
diff --git a/taiga/base/api/mixins.py b/taiga/base/api/mixins.py
index f1df9fb1..5576db90 100644
--- a/taiga/base/api/mixins.py
+++ b/taiga/base/api/mixins.py
@@ -95,9 +95,9 @@ class ListModelMixin(object):
         # Default is to allow empty querysets.  This can be altered by setting
         # `.allow_empty = False`, to raise 404 errors on empty querysets.
         if not self.allow_empty and not self.object_list:
-            warnings.warn(_('The `allow_empty` parameter is due to be deprecated. '
-                            'To use `allow_empty=False` style behavior, You should override '
-                            '`get_queryset()` and explicitly raise a 404 on empty querysets.'),
+            warnings.warn('The `allow_empty` parameter is due to be deprecated. '
+                          'To use `allow_empty=False` style behavior, You should override '
+                          '`get_queryset()` and explicitly raise a 404 on empty querysets.',
                           PendingDeprecationWarning)
             class_name = self.__class__.__name__
             error_msg = self.empty_error % {'class_name': class_name}
diff --git a/taiga/base/api/serializers.py b/taiga/base/api/serializers.py
index 979fb520..8add00ba 100644
--- a/taiga/base/api/serializers.py
+++ b/taiga/base/api/serializers.py
@@ -74,7 +74,7 @@ def _resolve_model(obj):
     elif inspect.isclass(obj) and issubclass(obj, models.Model):
         return obj
     else:
-        raise ValueError(_("{0} is not a Django model".format(obj)))
+        raise ValueError("{0} is not a Django model".format(obj))
 
 
 def pretty_name(name):
@@ -223,10 +223,10 @@ class BaseSerializer(WritableField):
         self._errors = None
 
         if many and instance is not None and not hasattr(instance, "__iter__"):
-            raise ValueError(_("instance should be a queryset or other iterable with many=True"))
+            raise ValueError("instance should be a queryset or other iterable with many=True")
 
         if allow_add_remove and not many:
-            raise ValueError(_("allow_add_remove should only be used for bulk updates, but you have not set many=True"))
+            raise ValueError("allow_add_remove should only be used for bulk updates, but you have not set many=True")
 
     #####
     # Methods to determine which fields to use when (de)serializing objects.
diff --git a/taiga/base/api/views.py b/taiga/base/api/views.py
index 4c0989ba..7a751eaf 100644
--- a/taiga/base/api/views.py
+++ b/taiga/base/api/views.py
@@ -349,9 +349,9 @@ class APIView(View):
         Returns the final response object.
         """
         # Make the error obvious if a proper response is not returned
-        assert isinstance(response, HttpResponseBase), _('Expected a `Response`, `HttpResponse` or '
-                                                         '`HttpStreamingResponse` to be returned from the view, '
-                                                         'but received a `%s`' % type(response))
+        assert isinstance(response, HttpResponseBase), ('Expected a `Response`, `HttpResponse` or '
+                                                        '`HttpStreamingResponse` to be returned from the view, '
+                                                        'but received a `%s`' % type(response))
 
         if isinstance(response, Response):
             if not getattr(request, 'accepted_renderer', None):
diff --git a/taiga/base/api/viewsets.py b/taiga/base/api/viewsets.py
index 076a9742..dd56cd14 100644
--- a/taiga/base/api/viewsets.py
+++ b/taiga/base/api/viewsets.py
@@ -53,12 +53,12 @@ class ViewSetMixin(object):
         # sanitize keyword arguments
         for key in initkwargs:
             if key in cls.http_method_names:
-                raise TypeError(_("You tried to pass in the %s method name as a "
-                                  "keyword argument to %s(). Don't do that."
-                                  % (key, cls.__name__)))
+                raise TypeError("You tried to pass in the %s method name as a "
+                                "keyword argument to %s(). Don't do that."
+                                % (key, cls.__name__))
             if not hasattr(cls, key):
-                raise TypeError(_("%s() received an invalid keyword %r"
-                                  % (cls.__name__, key)))
+                raise TypeError("%s() received an invalid keyword %r"
+                                % (cls.__name__, key))
 
         def view(request, *args, **kwargs):
             self = cls(**initkwargs)
diff --git a/taiga/base/filters.py b/taiga/base/filters.py
index b1e4e012..635a734f 100644
--- a/taiga/base/filters.py
+++ b/taiga/base/filters.py
@@ -115,9 +115,9 @@ class PermissionBasedFilterBackend(FilterBackend):
             try:
                 project_id = int(request.QUERY_PARAMS["project"])
             except:
-                logger.error(_("Filtering project diferent value than an integer: {}".format(
+                logger.error("Filtering project diferent value than an integer: {}".format(
                     request.QUERY_PARAMS["project"]
-                )))
+                ))
                 raise exc.BadRequest(_("'project' must be an integer value."))
 
         qs = queryset
@@ -204,9 +204,9 @@ class CanViewProjectObjFilterBackend(FilterBackend):
             try:
                 project_id = int(request.QUERY_PARAMS["project"])
             except:
-                logger.error(_("Filtering project diferent value than an integer: {}".format(
+                logger.error("Filtering project diferent value than an integer: {}".format(
                     request.QUERY_PARAMS["project"]
-                )))
+                ))
                 raise exc.BadRequest(_("'project' must be an integer value."))
 
         qs = queryset
@@ -261,8 +261,8 @@ class MembersFilterBackend(PermissionBasedFilterBackend):
             try:
                 project_id = int(request.QUERY_PARAMS["project"])
             except:
-                logger.error(_("Filtering project diferent value than an integer: {}".format(
-                                                              request.QUERY_PARAMS["project"])))
+                logger.error("Filtering project diferent value than an integer: {}".format(
+                                                              request.QUERY_PARAMS["project"]))
                 raise exc.BadRequest(_("'project' must be an integer value."))
 
         if project_id:
diff --git a/taiga/base/utils/signals.py b/taiga/base/utils/signals.py
index 0c326c95..1fe9c071 100644
--- a/taiga/base/utils/signals.py
+++ b/taiga/base/utils/signals.py
@@ -24,7 +24,7 @@ from contextlib import contextmanager
 def without_signals(*disablers):
     for disabler in disablers:
         if not (isinstance(disabler, list) or isinstance(disabler, tuple)) or len(disabler) == 0:
-            raise ValueError(_("The parameters must be lists of at least one parameter (the signal)."))
+            raise ValueError("The parameters must be lists of at least one parameter (the signal).")
 
         signal, *ids = disabler
         signal.backup_receivers = signal.receivers
diff --git a/taiga/events/events.py b/taiga/events/events.py
index d04fdd61..8e32dcf7 100644
--- a/taiga/events/events.py
+++ b/taiga/events/events.py
@@ -79,7 +79,7 @@ def emit_event_for_ids(ids, content_type:str, projectid:int, *,
                        type:str="change", channel:str="events", sessionid:str=None):
     assert type in set(["create", "change", "delete"])
     assert isinstance(ids, collections.Iterable)
-    assert content_type, "content_type parameter is mandatory"
+    assert content_type, "'content_type' parameter is mandatory"
 
     app_name, model_name = content_type.split(".", 1)
     routing_key = "changes.project.{0}.{1}".format(projectid, app_name)
diff --git a/taiga/export_import/dump_service.py b/taiga/export_import/dump_service.py
index 29605c8a..013e93e9 100644
--- a/taiga/export_import/dump_service.py
+++ b/taiga/export_import/dump_service.py
@@ -93,7 +93,7 @@ def dict_to_project(data, owner=None):
     project_serialized = service.store_project(data)
 
     if not project_serialized:
-        raise TaigaImportError(_("error importing project"))
+        raise TaigaImportError(_("error importing project data"))
 
     proj = project_serialized.object
 
@@ -106,12 +106,12 @@ def dict_to_project(data, owner=None):
     service.store_choices(proj, data, "severities", serializers.SeverityExportSerializer)
 
     if service.get_errors(clear=False):
-        raise TaigaImportError(_("error importing choices"))
+        raise TaigaImportError(_("error importing lists of project attributes"))
 
     service.store_default_choices(proj, data)
 
     if service.get_errors(clear=False):
-        raise TaigaImportError(_("error importing default choices"))
+        raise TaigaImportError(_("error importing default project attributes values"))
 
     service.store_custom_attributes(proj, data, "userstorycustomattributes",
                                     serializers.UserStoryCustomAttributeExportSerializer)
@@ -121,7 +121,7 @@ def dict_to_project(data, owner=None):
                                     serializers.IssueCustomAttributeExportSerializer)
 
     if service.get_errors(clear=False):
-        raise TaigaImportError(_("error importing custom fields"))
+        raise TaigaImportError(_("error importing custom attributes"))
 
     service.store_roles(proj, data)
 
@@ -146,7 +146,7 @@ def dict_to_project(data, owner=None):
     store_milestones(proj, data)
 
     if service.get_errors(clear=False):
-        raise TaigaImportError(_("error importing milestones"))
+        raise TaigaImportError(_("error importing sprints"))
 
     store_wiki_pages(proj, data)
 
@@ -171,12 +171,12 @@ def dict_to_project(data, owner=None):
     store_tasks(proj, data)
 
     if service.get_errors(clear=False):
-        raise TaigaImportError(_("error importing issues"))
+        raise TaigaImportError(_("error importing tasks"))
 
     store_tags_colors(proj, data)
 
     if service.get_errors(clear=False):
-        raise TaigaImportError(_("error importing colors"))
+        raise TaigaImportError(_("error importing tags"))
 
     store_timeline_entries(proj, data)
     if service.get_errors(clear=False):
diff --git a/taiga/locale/ca/LC_MESSAGES/django.po b/taiga/locale/ca/LC_MESSAGES/django.po
index 3b700f49..5888f708 100644
--- a/taiga/locale/ca/LC_MESSAGES/django.po
+++ b/taiga/locale/ca/LC_MESSAGES/django.po
@@ -9,8 +9,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: taiga-back\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2015-05-04 11:07+0200\n"
-"PO-Revision-Date: 2015-05-04 09:07+0000\n"
+"POT-Creation-Date: 2015-05-04 18:39+0200\n"
+"PO-Revision-Date: 2015-05-04 16:28+0000\n"
 "Last-Translator: Taiga Dev Team <support@taiga.io>\n"
 "Language-Team: Catalan (http://www.transifex.com/projects/p/taiga-back/"
 "language/ca/)\n"
@@ -181,13 +181,6 @@ msgstr ""
 "Puja una imatge vàlida. El fitxer que has pujat no ès una imatge o el fitxer "
 "està corrupte."
 
-#: taiga/base/api/mixins.py:98
-msgid ""
-"The `allow_empty` parameter is due to be deprecated. To use "
-"`allow_empty=False` style behavior, You should override `get_queryset()` and "
-"explicitly raise a 404 on empty querysets."
-msgstr ""
-
 #: taiga/base/api/pagination.py:115
 msgid "Page is not 'last', nor can it be converted to an int."
 msgstr "La página no es 'last' ni pot ser convertida a un 'int'"
@@ -237,21 +230,6 @@ msgstr ""
 msgid "Incorrect type.  Expected url string, received %s."
 msgstr ""
 
-#: taiga/base/api/serializers.py:77
-#, python-brace-format
-msgid "{0} is not a Django model"
-msgstr ""
-
-#: taiga/base/api/serializers.py:226
-msgid "instance should be a queryset or other iterable with many=True"
-msgstr ""
-
-#: taiga/base/api/serializers.py:229
-msgid ""
-"allow_add_remove should only be used for bulk updates, but you have not set "
-"many=True"
-msgstr ""
-
 #: taiga/base/api/serializers.py:296
 msgid "Invalid data"
 msgstr ""
@@ -276,29 +254,10 @@ msgstr ""
 msgid "Permission denied"
 msgstr ""
 
-#: taiga/base/api/views.py:352
-#, python-format
-msgid ""
-"Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be "
-"returned from the view, but received a `%s`"
-msgstr ""
-
 #: taiga/base/api/views.py:451
 msgid "Server application error"
 msgstr ""
 
-#: taiga/base/api/viewsets.py:56
-#, python-format
-msgid ""
-"You tried to pass in the %s method name as a keyword argument to %s(). Don't "
-"do that."
-msgstr ""
-
-#: taiga/base/api/viewsets.py:60
-#, python-format
-msgid "%s() received an invalid keyword %r"
-msgstr ""
-
 #: taiga/base/connectors/exceptions.py:24
 msgid "Connection error."
 msgstr "Error de connexió."
@@ -374,11 +333,6 @@ msgstr "Precondició errònia."
 msgid "Error in filter params types."
 msgstr ""
 
-#: taiga/base/filters.py:118 taiga/base/filters.py:207
-#: taiga/base/filters.py:264
-msgid "Filtering project diferent value than an integer: {}"
-msgstr ""
-
 #: taiga/base/filters.py:121 taiga/base/filters.py:210
 #: taiga/base/filters.py:266
 msgid "'project' must be an integer value."
@@ -476,10 +430,6 @@ msgstr ""
 "    Comentari: %(comment)s\n"
 "        "
 
-#: taiga/base/utils/signals.py:27
-msgid "The parameters must be lists of at least one parameter (the signal)."
-msgstr ""
-
 #: taiga/export_import/api.py:183
 msgid "Needed dump file"
 msgstr "Es necessita arxiu dump."
@@ -489,19 +439,19 @@ msgid "Invalid dump format"
 msgstr "Format d'arxiu dump invàlid"
 
 #: taiga/export_import/dump_service.py:96
-msgid "error importing project"
+msgid "error importing project data"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:109
-msgid "error importing choices"
+msgid "error importing lists of project attributes"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:114
-msgid "error importing default choices"
+msgid "error importing default project attributes values"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:124
-msgid "error importing custom fields"
+msgid "error importing custom attributes"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:129
@@ -513,7 +463,7 @@ msgid "error importing memberships"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:149
-msgid "error importing milestones"
+msgid "error importing sprints"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:154
@@ -525,7 +475,6 @@ msgid "error importing wiki links"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:164
-#: taiga/export_import/dump_service.py:174
 msgid "error importing issues"
 msgstr ""
 
@@ -533,8 +482,12 @@ msgstr ""
 msgid "error importing user stories"
 msgstr ""
 
+#: taiga/export_import/dump_service.py:174
+msgid "error importing tasks"
+msgstr ""
+
 #: taiga/export_import/dump_service.py:179
-msgid "error importing colors"
+msgid "error importing tags"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:183
@@ -558,7 +511,7 @@ msgstr "Conté camps personalitzats invàlids."
 #: taiga/export_import/serializers.py:466
 #: taiga/projects/milestones/serializers.py:63
 #: taiga/projects/serializers.py:65 taiga/projects/serializers.py:91
-#: taiga/projects/serializers.py:114 taiga/projects/serializers.py:149
+#: taiga/projects/serializers.py:121 taiga/projects/serializers.py:163
 msgid "Name duplicated for the project"
 msgstr ""
 
@@ -907,7 +860,7 @@ msgstr ""
 msgid "Not valid template description"
 msgstr ""
 
-#: taiga/projects/api.py:469 taiga/projects/serializers.py:235
+#: taiga/projects/api.py:469 taiga/projects/serializers.py:256
 msgid "At least one of the user must be an active admin"
 msgstr "Al menys un del usuaris ha de ser administrador"
 
@@ -1264,20 +1217,20 @@ msgstr "està bloquejat"
 
 #: taiga/projects/mixins/ordering.py:47
 #, python-brace-format
-msgid "{param} parameter is mandatory"
-msgstr "{param} paràmetre és obligatori"
+msgid "'{param}' parameter is mandatory"
+msgstr ""
 
 #: taiga/projects/mixins/ordering.py:51
-msgid "project parameter is mandatory"
-msgstr "el paràmetre de projecte és obligatori"
+msgid "'project' parameter is mandatory"
+msgstr ""
 
 #: taiga/projects/models.py:59
 msgid "email"
 msgstr "email"
 
 #: taiga/projects/models.py:61
-msgid "creado el"
-msgstr "creat el"
+msgid "create at"
+msgstr ""
 
 #: taiga/projects/models.py:63 taiga/users/models.py:126
 msgid "token"
@@ -1531,51 +1484,51 @@ msgstr "Versió"
 msgid "You can't leave the project if there are no more owners"
 msgstr "No pots deixar el projecte si no hi ha més amos"
 
-#: taiga/projects/serializers.py:211
+#: taiga/projects/serializers.py:232
 msgid "Email address is already taken"
 msgstr "Aquest e-mail ja està en ús"
 
-#: taiga/projects/serializers.py:223
+#: taiga/projects/serializers.py:244
 msgid "Invalid role for the project"
 msgstr "Rol invàlid per al projecte"
 
-#: taiga/projects/serializers.py:321
+#: taiga/projects/serializers.py:342
 msgid "Total milestones must be major or equal to zero"
 msgstr ""
 
-#: taiga/projects/serializers.py:378
+#: taiga/projects/serializers.py:399
 msgid "Default options"
 msgstr "Opcions per defecte"
 
-#: taiga/projects/serializers.py:379
+#: taiga/projects/serializers.py:400
 msgid "User story's statuses"
 msgstr "Estatus d'històries d'usuari"
 
-#: taiga/projects/serializers.py:380
+#: taiga/projects/serializers.py:401
 msgid "Points"
 msgstr "Punts"
 
-#: taiga/projects/serializers.py:381
+#: taiga/projects/serializers.py:402
 msgid "Task's statuses"
 msgstr "Estatus de tasques"
 
-#: taiga/projects/serializers.py:382
+#: taiga/projects/serializers.py:403
 msgid "Issue's statuses"
 msgstr "Estatus d'incidéncies"
 
-#: taiga/projects/serializers.py:383
+#: taiga/projects/serializers.py:404
 msgid "Issue's types"
 msgstr "Tipus d'incidéncies"
 
-#: taiga/projects/serializers.py:384
+#: taiga/projects/serializers.py:405
 msgid "Priorities"
 msgstr "Prioritats"
 
-#: taiga/projects/serializers.py:385
+#: taiga/projects/serializers.py:406
 msgid "Severities"
 msgstr "Severitats"
 
-#: taiga/projects/serializers.py:386
+#: taiga/projects/serializers.py:407
 msgid "Roles"
 msgstr "Rols"
 
@@ -1658,8 +1611,8 @@ msgstr ""
 "    "
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:19
-msgid "Accept your invitation to Taiga following whis link:"
-msgstr "Acepta la invitació a Taiga fent click a aquest link:"
+msgid "Accept your invitation to Taiga following this link:"
+msgstr ""
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:21
 msgid ""
@@ -1989,12 +1942,12 @@ msgid "Vote"
 msgstr "Vot"
 
 #: taiga/projects/wiki/api.py:60
-msgid "No content parameter"
-msgstr "No hi ha parametre de contingut"
+msgid "'content' parameter is mandatory"
+msgstr ""
 
 #: taiga/projects/wiki/api.py:63
-msgid "No project_id parameter"
-msgstr "No hi ha parametre de project_id"
+msgid "'project_id' parameter is mandatory"
+msgstr ""
 
 #: taiga/projects/wiki/models.py:36
 msgid "last modifier"
diff --git a/taiga/locale/en/LC_MESSAGES/django.po b/taiga/locale/en/LC_MESSAGES/django.po
index 465934ab..ea2e36cf 100644
--- a/taiga/locale/en/LC_MESSAGES/django.po
+++ b/taiga/locale/en/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: taiga-back\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2015-05-04 11:07+0200\n"
+"POT-Creation-Date: 2015-05-04 18:39+0200\n"
 "PO-Revision-Date: 2015-03-25 20:09+0100\n"
 "Last-Translator: Taiga Dev Team <support@taiga.io>\n"
 "Language-Team: Taiga Dev Team <support@taiga.io>\n"
@@ -173,13 +173,6 @@ msgid ""
 "corrupted image."
 msgstr ""
 
-#: taiga/base/api/mixins.py:98
-msgid ""
-"The `allow_empty` parameter is due to be deprecated. To use "
-"`allow_empty=False` style behavior, You should override `get_queryset()` and "
-"explicitly raise a 404 on empty querysets."
-msgstr ""
-
 #: taiga/base/api/pagination.py:115
 msgid "Page is not 'last', nor can it be converted to an int."
 msgstr ""
@@ -229,21 +222,6 @@ msgstr ""
 msgid "Incorrect type.  Expected url string, received %s."
 msgstr ""
 
-#: taiga/base/api/serializers.py:77
-#, python-brace-format
-msgid "{0} is not a Django model"
-msgstr ""
-
-#: taiga/base/api/serializers.py:226
-msgid "instance should be a queryset or other iterable with many=True"
-msgstr ""
-
-#: taiga/base/api/serializers.py:229
-msgid ""
-"allow_add_remove should only be used for bulk updates, but you have not set "
-"many=True"
-msgstr ""
-
 #: taiga/base/api/serializers.py:296
 msgid "Invalid data"
 msgstr ""
@@ -268,29 +246,10 @@ msgstr ""
 msgid "Permission denied"
 msgstr ""
 
-#: taiga/base/api/views.py:352
-#, python-format
-msgid ""
-"Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be "
-"returned from the view, but received a `%s`"
-msgstr ""
-
 #: taiga/base/api/views.py:451
 msgid "Server application error"
 msgstr ""
 
-#: taiga/base/api/viewsets.py:56
-#, python-format
-msgid ""
-"You tried to pass in the %s method name as a keyword argument to %s(). Don't "
-"do that."
-msgstr ""
-
-#: taiga/base/api/viewsets.py:60
-#, python-format
-msgid "%s() received an invalid keyword %r"
-msgstr ""
-
 #: taiga/base/connectors/exceptions.py:24
 msgid "Connection error."
 msgstr ""
@@ -366,11 +325,6 @@ msgstr ""
 msgid "Error in filter params types."
 msgstr ""
 
-#: taiga/base/filters.py:118 taiga/base/filters.py:207
-#: taiga/base/filters.py:264
-msgid "Filtering project diferent value than an integer: {}"
-msgstr ""
-
 #: taiga/base/filters.py:121 taiga/base/filters.py:210
 #: taiga/base/filters.py:266
 msgid "'project' must be an integer value."
@@ -461,10 +415,6 @@ msgid ""
 "        "
 msgstr ""
 
-#: taiga/base/utils/signals.py:27
-msgid "The parameters must be lists of at least one parameter (the signal)."
-msgstr ""
-
 #: taiga/export_import/api.py:183
 msgid "Needed dump file"
 msgstr ""
@@ -474,19 +424,19 @@ msgid "Invalid dump format"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:96
-msgid "error importing project"
+msgid "error importing project data"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:109
-msgid "error importing choices"
+msgid "error importing lists of project attributes"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:114
-msgid "error importing default choices"
+msgid "error importing default project attributes values"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:124
-msgid "error importing custom fields"
+msgid "error importing custom attributes"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:129
@@ -498,7 +448,7 @@ msgid "error importing memberships"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:149
-msgid "error importing milestones"
+msgid "error importing sprints"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:154
@@ -510,7 +460,6 @@ msgid "error importing wiki links"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:164
-#: taiga/export_import/dump_service.py:174
 msgid "error importing issues"
 msgstr ""
 
@@ -518,8 +467,12 @@ msgstr ""
 msgid "error importing user stories"
 msgstr ""
 
+#: taiga/export_import/dump_service.py:174
+msgid "error importing tasks"
+msgstr ""
+
 #: taiga/export_import/dump_service.py:179
-msgid "error importing colors"
+msgid "error importing tags"
 msgstr ""
 
 #: taiga/export_import/dump_service.py:183
@@ -543,7 +496,7 @@ msgstr ""
 #: taiga/export_import/serializers.py:466
 #: taiga/projects/milestones/serializers.py:63
 #: taiga/projects/serializers.py:65 taiga/projects/serializers.py:91
-#: taiga/projects/serializers.py:114 taiga/projects/serializers.py:149
+#: taiga/projects/serializers.py:121 taiga/projects/serializers.py:163
 msgid "Name duplicated for the project"
 msgstr ""
 
@@ -876,7 +829,7 @@ msgstr ""
 msgid "Not valid template description"
 msgstr ""
 
-#: taiga/projects/api.py:469 taiga/projects/serializers.py:235
+#: taiga/projects/api.py:469 taiga/projects/serializers.py:256
 msgid "At least one of the user must be an active admin"
 msgstr ""
 
@@ -1233,11 +1186,11 @@ msgstr ""
 
 #: taiga/projects/mixins/ordering.py:47
 #, python-brace-format
-msgid "{param} parameter is mandatory"
+msgid "'{param}' parameter is mandatory"
 msgstr ""
 
 #: taiga/projects/mixins/ordering.py:51
-msgid "project parameter is mandatory"
+msgid "'project' parameter is mandatory"
 msgstr ""
 
 #: taiga/projects/models.py:59
@@ -1245,7 +1198,7 @@ msgid "email"
 msgstr ""
 
 #: taiga/projects/models.py:61
-msgid "creado el"
+msgid "create at"
 msgstr ""
 
 #: taiga/projects/models.py:63 taiga/users/models.py:126
@@ -1494,51 +1447,51 @@ msgstr ""
 msgid "You can't leave the project if there are no more owners"
 msgstr ""
 
-#: taiga/projects/serializers.py:211
+#: taiga/projects/serializers.py:232
 msgid "Email address is already taken"
 msgstr ""
 
-#: taiga/projects/serializers.py:223
+#: taiga/projects/serializers.py:244
 msgid "Invalid role for the project"
 msgstr ""
 
-#: taiga/projects/serializers.py:321
+#: taiga/projects/serializers.py:342
 msgid "Total milestones must be major or equal to zero"
 msgstr ""
 
-#: taiga/projects/serializers.py:378
+#: taiga/projects/serializers.py:399
 msgid "Default options"
 msgstr ""
 
-#: taiga/projects/serializers.py:379
+#: taiga/projects/serializers.py:400
 msgid "User story's statuses"
 msgstr ""
 
-#: taiga/projects/serializers.py:380
+#: taiga/projects/serializers.py:401
 msgid "Points"
 msgstr ""
 
-#: taiga/projects/serializers.py:381
+#: taiga/projects/serializers.py:402
 msgid "Task's statuses"
 msgstr ""
 
-#: taiga/projects/serializers.py:382
+#: taiga/projects/serializers.py:403
 msgid "Issue's statuses"
 msgstr ""
 
-#: taiga/projects/serializers.py:383
+#: taiga/projects/serializers.py:404
 msgid "Issue's types"
 msgstr ""
 
-#: taiga/projects/serializers.py:384
+#: taiga/projects/serializers.py:405
 msgid "Priorities"
 msgstr ""
 
-#: taiga/projects/serializers.py:385
+#: taiga/projects/serializers.py:406
 msgid "Severities"
 msgstr ""
 
-#: taiga/projects/serializers.py:386
+#: taiga/projects/serializers.py:407
 msgid "Roles"
 msgstr ""
 
@@ -1610,7 +1563,7 @@ msgid ""
 msgstr ""
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:19
-msgid "Accept your invitation to Taiga following whis link:"
+msgid "Accept your invitation to Taiga following this link:"
 msgstr ""
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:21
@@ -1932,11 +1885,11 @@ msgid "Vote"
 msgstr ""
 
 #: taiga/projects/wiki/api.py:60
-msgid "No content parameter"
+msgid "'content' parameter is mandatory"
 msgstr ""
 
 #: taiga/projects/wiki/api.py:63
-msgid "No project_id parameter"
+msgid "'project_id' parameter is mandatory"
 msgstr ""
 
 #: taiga/projects/wiki/models.py:36
diff --git a/taiga/locale/es/LC_MESSAGES/django.po b/taiga/locale/es/LC_MESSAGES/django.po
index ab87f5fd..8081cc5a 100644
--- a/taiga/locale/es/LC_MESSAGES/django.po
+++ b/taiga/locale/es/LC_MESSAGES/django.po
@@ -11,9 +11,9 @@ msgid ""
 msgstr ""
 "Project-Id-Version: taiga-back\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2015-05-04 11:07+0200\n"
-"PO-Revision-Date: 2015-05-04 09:07+0000\n"
-"Last-Translator: Taiga Dev Team <support@taiga.io>\n"
+"POT-Creation-Date: 2015-05-04 18:39+0200\n"
+"PO-Revision-Date: 2015-05-05 09:54+0000\n"
+"Last-Translator: David Barragán <bameda@gmail.com>\n"
 "Language-Team: Spanish (http://www.transifex.com/projects/p/taiga-back/"
 "language/es/)\n"
 "MIME-Version: 1.0\n"
@@ -165,6 +165,7 @@ msgstr ""
 #: taiga/base/api/fields.py:953
 msgid "No file was submitted. Check the encoding type on the form."
 msgstr ""
+"No se ha adjuntado ningún archivo. Comprueba el encoding en el formulario."
 
 #: taiga/base/api/fields.py:954
 msgid "No file was submitted."
@@ -179,27 +180,22 @@ msgstr "El archivo enviado está vacío."
 msgid ""
 "Ensure this filename has at most %(max)d characters (it has %(length)d)."
 msgstr ""
+"Asegúrate de que el nombre del fichero contiene menos de %(max)d caracteres "
+"(ahora tiene %(length)d)."
 
 #: taiga/base/api/fields.py:957
 msgid "Please either submit a file or check the clear checkbox, not both."
-msgstr ""
+msgstr "Por favor, adjunta un fichero o marca la casilla de vacío, no ambos."
 
 #: taiga/base/api/fields.py:997
 msgid ""
 "Upload a valid image. The file you uploaded was either not an image or a "
 "corrupted image."
-msgstr ""
-
-#: taiga/base/api/mixins.py:98
-msgid ""
-"The `allow_empty` parameter is due to be deprecated. To use "
-"`allow_empty=False` style behavior, You should override `get_queryset()` and "
-"explicitly raise a 404 on empty querysets."
-msgstr ""
+msgstr "Adjunta una imagen válida. El fichero no es una imagen o está dañada."
 
 #: taiga/base/api/pagination.py:115
 msgid "Page is not 'last', nor can it be converted to an int."
-msgstr ""
+msgstr "La página no es 'last' o no es un número."
 
 #: taiga/base/api/pagination.py:119
 #, python-format
@@ -219,47 +215,33 @@ msgstr "PK '%s' inválida - el objeto no existe."
 #, python-format
 msgid "Incorrect type. Expected pk value, received %s."
 msgstr ""
+"Tipo incorrecto. Se esperaba un identificador (pk) y se ha recibido %s."
 
 #: taiga/base/api/relations.py:310
 #, python-format
 msgid "Object with %s=%s does not exist."
-msgstr ""
+msgstr "El objeto con %s=%s no existe."
 
 #: taiga/base/api/relations.py:346
 msgid "Invalid hyperlink - No URL match"
-msgstr ""
+msgstr "Hipervínculo inválido - La URL no encaja con ningun objeto."
 
 #: taiga/base/api/relations.py:347
 msgid "Invalid hyperlink - Incorrect URL match"
-msgstr ""
+msgstr "Hipervínculo inválido - La URL es incorrecta"
 
 #: taiga/base/api/relations.py:348
 msgid "Invalid hyperlink due to configuration error"
-msgstr ""
+msgstr "Hipervínculo inválido debido a un error de configuración"
 
 #: taiga/base/api/relations.py:349
 msgid "Invalid hyperlink - object does not exist."
-msgstr ""
+msgstr "Hipervínculo inválido - el objeto no existe."
 
 #: taiga/base/api/relations.py:350
 #, python-format
 msgid "Incorrect type.  Expected url string, received %s."
-msgstr ""
-
-#: taiga/base/api/serializers.py:77
-#, python-brace-format
-msgid "{0} is not a Django model"
-msgstr ""
-
-#: taiga/base/api/serializers.py:226
-msgid "instance should be a queryset or other iterable with many=True"
-msgstr ""
-
-#: taiga/base/api/serializers.py:229
-msgid ""
-"allow_add_remove should only be used for bulk updates, but you have not set "
-"many=True"
-msgstr ""
+msgstr "Tipo incorrecto. Se esperaba una url y se ha recibido %s."
 
 #: taiga/base/api/serializers.py:296
 msgid "Invalid data"
@@ -267,15 +249,17 @@ msgstr "Datos invalidos"
 
 #: taiga/base/api/serializers.py:388
 msgid "No input provided"
-msgstr ""
+msgstr "No se han introducido datos."
 
 #: taiga/base/api/serializers.py:548
 msgid "Cannot create a new item, only existing items may be updated."
 msgstr ""
+"No se pueden crear nuevos objetos. Sólo está permitida la actualización de "
+"los existentes."
 
 #: taiga/base/api/serializers.py:559
 msgid "Expected a list of items."
-msgstr ""
+msgstr "Se esperaba una lista de objetos."
 
 #: taiga/base/api/views.py:100
 msgid "Not found"
@@ -285,28 +269,9 @@ msgstr "No encontrado"
 msgid "Permission denied"
 msgstr "Permiso denegado."
 
-#: taiga/base/api/views.py:352
-#, python-format
-msgid ""
-"Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be "
-"returned from the view, but received a `%s`"
-msgstr ""
-
 #: taiga/base/api/views.py:451
 msgid "Server application error"
-msgstr ""
-
-#: taiga/base/api/viewsets.py:56
-#, python-format
-msgid ""
-"You tried to pass in the %s method name as a keyword argument to %s(). Don't "
-"do that."
-msgstr ""
-
-#: taiga/base/api/viewsets.py:60
-#, python-format
-msgid "%s() received an invalid keyword %r"
-msgstr ""
+msgstr "Error en la aplicación del servidor."
 
 #: taiga/base/connectors/exceptions.py:24
 msgid "Connection error."
@@ -314,42 +279,42 @@ msgstr "Error de conexión"
 
 #: taiga/base/exceptions.py:53
 msgid "Malformed request."
-msgstr ""
+msgstr "Petición con formato incorrecto."
 
 #: taiga/base/exceptions.py:58
 msgid "Incorrect authentication credentials."
-msgstr ""
+msgstr "Credenciales de autenticación incorrectas."
 
 #: taiga/base/exceptions.py:63
 msgid "Authentication credentials were not provided."
-msgstr ""
+msgstr "No se han proporcionado las credenciales de autenticación."
 
 #: taiga/base/exceptions.py:68
 msgid "You do not have permission to perform this action."
-msgstr ""
+msgstr "No tienes permisos para realizar esta acción."
 
 #: taiga/base/exceptions.py:73
 #, python-format
 msgid "Method '%s' not allowed."
-msgstr ""
+msgstr "Método '%s' no permitido."
 
 #: taiga/base/exceptions.py:81
 msgid "Could not satisfy the request's Accept header"
-msgstr ""
+msgstr "No se ha podido satisfacer la perición de cabecera Accept"
 
 #: taiga/base/exceptions.py:90
 #, python-format
 msgid "Unsupported media type '%s' in request."
-msgstr ""
+msgstr "Típo de medio '%s' no soportado."
 
 #: taiga/base/exceptions.py:98
 msgid "Request was throttled."
-msgstr ""
+msgstr "Demasiadas peticiones."
 
 #: taiga/base/exceptions.py:99
 #, python-format
 msgid "Expected available in %d second%s."
-msgstr ""
+msgstr "Estará disponible en %d segundos%s."
 
 #: taiga/base/exceptions.py:113
 msgid "Unexpected error"
@@ -361,37 +326,32 @@ msgstr "No encontrado."
 
 #: taiga/base/exceptions.py:130
 msgid "Method not supported for this endpoint."
-msgstr ""
+msgstr "Método no soportado por este recurso."
 
 #: taiga/base/exceptions.py:138 taiga/base/exceptions.py:146
 msgid "Wrong arguments."
-msgstr ""
+msgstr "Argumentos erróneos."
 
 #: taiga/base/exceptions.py:150
 msgid "Data validation error"
-msgstr ""
+msgstr "Error de validación de datos"
 
 #: taiga/base/exceptions.py:162
 msgid "Integrity Error for wrong or invalid arguments"
-msgstr ""
+msgstr "Error de integridad por argumentos incorrectos o inválidos"
 
 #: taiga/base/exceptions.py:169
 msgid "Precondition error"
-msgstr ""
+msgstr "Error por incumplimiento de precondición"
 
 #: taiga/base/filters.py:74
 msgid "Error in filter params types."
-msgstr ""
-
-#: taiga/base/filters.py:118 taiga/base/filters.py:207
-#: taiga/base/filters.py:264
-msgid "Filtering project diferent value than an integer: {}"
-msgstr ""
+msgstr "Error en los típos de parámetros de filtrado"
 
 #: taiga/base/filters.py:121 taiga/base/filters.py:210
 #: taiga/base/filters.py:266
 msgid "'project' must be an integer value."
-msgstr ""
+msgstr "'project' debe ser un valor entero."
 
 #: taiga/base/tags.py:25
 msgid "tags"
@@ -450,14 +410,18 @@ msgid ""
 "Source, Agile Project Management Tool</p>\n"
 "                                                "
 msgstr ""
+"\n"
+"<h1>Has sido Taigaizado!</h1>\n"
+"<p>Te damos la bienvenida a Taiga, la herramienta Agile de gestión de "
+"proyectos OpenSource</p>"
 
 #: taiga/base/templates/emails/updates-body-html.jinja:6
 msgid "[Taiga] Updates"
-msgstr ""
+msgstr "[Taiga] Actualizaciones"
 
 #: taiga/base/templates/emails/updates-body-html.jinja:417
 msgid "Updates"
-msgstr ""
+msgstr "Actualizaciones"
 
 #: taiga/base/templates/emails/updates-body-html.jinja:423
 #, python-format
@@ -469,6 +433,9 @@ msgid ""
 "%(comment)s</p>\n"
 "                                                                "
 msgstr ""
+"\n"
+"<h3>comentario:</h3>\n"
+"<p>%(comment)s</p>"
 
 #: taiga/base/templates/emails/updates-body-text.jinja:6
 #, python-format
@@ -477,71 +444,72 @@ msgid ""
 "    Comment: %(comment)s\n"
 "        "
 msgstr ""
-
-#: taiga/base/utils/signals.py:27
-msgid "The parameters must be lists of at least one parameter (the signal)."
-msgstr ""
+"\n"
+"Comentario: %(comment)s"
 
 #: taiga/export_import/api.py:183
 msgid "Needed dump file"
-msgstr ""
+msgstr "Se necesita el fichero con los datos exportados"
 
 #: taiga/export_import/api.py:190
 msgid "Invalid dump format"
-msgstr ""
+msgstr "Formato de fichero de exportación inválido"
 
 #: taiga/export_import/dump_service.py:96
-msgid "error importing project"
-msgstr ""
+msgid "error importing project data"
+msgstr "error importando los datos del proyecto"
 
 #: taiga/export_import/dump_service.py:109
-msgid "error importing choices"
-msgstr ""
+msgid "error importing lists of project attributes"
+msgstr "error importando la listados de valores de attributos del proyecto"
 
 #: taiga/export_import/dump_service.py:114
-msgid "error importing default choices"
-msgstr ""
+msgid "error importing default project attributes values"
+msgstr "error importando los valores por defecto de los atributos del proyecto"
 
 #: taiga/export_import/dump_service.py:124
-msgid "error importing custom fields"
-msgstr ""
+msgid "error importing custom attributes"
+msgstr "error importando los atributos personalizados"
 
 #: taiga/export_import/dump_service.py:129
 msgid "error importing roles"
-msgstr ""
+msgstr "error importando los roles"
 
 #: taiga/export_import/dump_service.py:144
 msgid "error importing memberships"
-msgstr ""
+msgstr "error importando los miembros"
 
 #: taiga/export_import/dump_service.py:149
-msgid "error importing milestones"
-msgstr ""
+msgid "error importing sprints"
+msgstr "error importando los sprints"
 
 #: taiga/export_import/dump_service.py:154
 msgid "error importing wiki pages"
-msgstr ""
+msgstr "error importando las páginas del wiki"
 
 #: taiga/export_import/dump_service.py:159
 msgid "error importing wiki links"
-msgstr ""
+msgstr "error importando los enlaces del wiki"
 
 #: taiga/export_import/dump_service.py:164
-#: taiga/export_import/dump_service.py:174
 msgid "error importing issues"
 msgstr "error importando las peticiones"
 
 #: taiga/export_import/dump_service.py:169
 msgid "error importing user stories"
-msgstr ""
+msgstr "error importando las historias de usuario"
+
+#: taiga/export_import/dump_service.py:174
+msgid "error importing tasks"
+msgstr "error importando las tareas"
 
 #: taiga/export_import/dump_service.py:179
-msgid "error importing colors"
-msgstr ""
+msgid "error importing tags"
+msgstr "error importando las etiquetas"
 
 #: taiga/export_import/dump_service.py:183
 msgid "error importing timelines"
-msgstr ""
+msgstr "error importando los timelines"
 
 #: taiga/export_import/serializers.py:161
 msgid "{}=\"{}\" not found in this project"
@@ -550,47 +518,49 @@ msgstr "{}=\"{}\"  no se ha encontrado en este proyecto"
 #: taiga/export_import/serializers.py:382
 #: taiga/projects/custom_attributes/serializers.py:103
 msgid "Invalid content. It must be {\"key\": \"value\",...}"
-msgstr ""
+msgstr "Contenido inválido. Debe ser {\"clave\": \"valor\",...}"
 
 #: taiga/export_import/serializers.py:397
 #: taiga/projects/custom_attributes/serializers.py:118
 msgid "It contain invalid custom fields."
-msgstr ""
+msgstr "Contiene attributos personalizados inválidos."
 
 #: taiga/export_import/serializers.py:466
 #: taiga/projects/milestones/serializers.py:63
 #: taiga/projects/serializers.py:65 taiga/projects/serializers.py:91
-#: taiga/projects/serializers.py:114 taiga/projects/serializers.py:149
+#: taiga/projects/serializers.py:121 taiga/projects/serializers.py:163
 msgid "Name duplicated for the project"
-msgstr ""
+msgstr "Nombre duplicado para el proyecto"
 
 #: taiga/export_import/tasks.py:49 taiga/export_import/tasks.py:50
 msgid "Error generating project dump"
-msgstr ""
+msgstr "Erro generando el volcado de datos del proyecto"
 
 #: taiga/export_import/tasks.py:82 taiga/export_import/tasks.py:83
 msgid "Error loading project dump"
-msgstr ""
+msgstr "Error cargando el volcado de datos del proyecto"
 
 #: taiga/export_import/templates/emails/dump_project-subject.jinja:1
 #, python-format
 msgid "[%(project)s] Your project dump has been generated"
 msgstr ""
+"[%(project)s] Se ha generado el fichero con el volcado de datos de tu "
+"proyecto"
 
 #: taiga/export_import/templates/emails/export_error-subject.jinja:1
 #, python-format
 msgid "[%(project)s] %(error_subject)s"
-msgstr ""
+msgstr "[%(project)s] %(error_subject)s"
 
 #: taiga/export_import/templates/emails/import_error-subject.jinja:1
 #, python-format
 msgid "[Taiga] %(error_subject)s"
-msgstr ""
+msgstr "[Taiga] %(error_subject)s"
 
 #: taiga/export_import/templates/emails/load_dump-subject.jinja:1
 #, python-format
 msgid "[%(project)s] Your project dump has been imported"
-msgstr ""
+msgstr "[%(project)s] Tu proyecto ha sido importado"
 
 #: taiga/feedback/models.py:23 taiga/users/models.py:111
 msgid "full name"
@@ -602,7 +572,7 @@ msgstr "dirección de email"
 
 #: taiga/feedback/models.py:27
 msgid "comment"
-msgstr ""
+msgstr "comentario"
 
 #: taiga/feedback/models.py:29 taiga/projects/attachments/models.py:63
 #: taiga/projects/custom_attributes/models.py:38
@@ -611,7 +581,7 @@ msgstr ""
 #: taiga/projects/tasks/models.py:46 taiga/projects/userstories/models.py:82
 #: taiga/projects/wiki/models.py:38 taiga/userstorage/models.py:27
 msgid "created date"
-msgstr ""
+msgstr "fecha de creación"
 
 #: taiga/feedback/templates/emails/feedback_notification-body-html.jinja:4
 #, python-format
@@ -621,6 +591,9 @@ msgid ""
 "    <p>Taiga has received feedback from %(full_name)s <%(email)s></p>\n"
 "    "
 msgstr ""
+"\n"
+"<h1>Feedback</h1>\n"
+"<p>Taiga ha recivido feedback de %(full_name)s <%(email)s></p>"
 
 #: taiga/feedback/templates/emails/feedback_notification-body-html.jinja:9
 #, python-format
@@ -630,11 +603,15 @@ msgid ""
 "    <p>%(comment)s</p>\n"
 "    "
 msgstr ""
+"\n"
+"\n"
+"<h3>Comentario</h3>\n"
+"<p>%(comment)s</p>"
 
 #: taiga/feedback/templates/emails/feedback_notification-body-html.jinja:18
 #: taiga/users/admin.py:51
 msgid "Extra info"
-msgstr ""
+msgstr "Información extra"
 
 #: taiga/feedback/templates/emails/feedback_notification-body-text.jinja:1
 #, python-format
@@ -646,10 +623,16 @@ msgid ""
 "%(comment)s\n"
 "---------"
 msgstr ""
+"---------\n"
+"- De: %(full_name)s <%(email)s>\n"
+"---------\n"
+"- Comentario:\n"
+"%(comment)s\n"
+"---------"
 
 #: taiga/feedback/templates/emails/feedback_notification-body-text.jinja:8
 msgid "- Extra info:"
-msgstr ""
+msgstr "- Información extra:"
 
 #: taiga/feedback/templates/emails/feedback_notification-subject.jinja:1
 #, python-format
@@ -657,10 +640,12 @@ msgid ""
 "\n"
 "[Taiga] Feedback from %(full_name)s <%(email)s>\n"
 msgstr ""
+"\n"
+"[Taiga] Feedback de %(full_name)s <%(email)s>\n"
 
 #: taiga/hooks/api.py:52
 msgid "The payload is not a valid json"
-msgstr ""
+msgstr "El payload no es un json válido"
 
 #: taiga/hooks/api.py:61
 msgid "The project doesn't exist"
@@ -668,45 +653,45 @@ msgstr "El proyecto no existe"
 
 #: taiga/hooks/api.py:64
 msgid "Bad signature"
-msgstr ""
+msgstr "Firma errónea"
 
 #: taiga/hooks/bitbucket/api.py:40
 msgid "The payload is not a valid application/x-www-form-urlencoded"
-msgstr ""
+msgstr "El payload no es una application/x-www-form-urlencoded válida"
 
 #: taiga/hooks/bitbucket/event_hooks.py:45
 msgid "The payload is not valid"
-msgstr ""
+msgstr "El payload no es válido"
 
 #: taiga/hooks/bitbucket/event_hooks.py:81
 #: taiga/hooks/github/event_hooks.py:75 taiga/hooks/gitlab/event_hooks.py:74
 msgid "The referenced element doesn't exist"
-msgstr ""
+msgstr "El elemento referenciado no existe"
 
 #: taiga/hooks/bitbucket/event_hooks.py:88
 #: taiga/hooks/github/event_hooks.py:82 taiga/hooks/gitlab/event_hooks.py:81
 msgid "The status doesn't exist"
-msgstr ""
+msgstr "El estado no existe"
 
 #: taiga/hooks/bitbucket/event_hooks.py:94
 msgid "Status changed from BitBucket commit"
-msgstr ""
+msgstr "Estado cambiado desde un commit de BitBucket"
 
 #: taiga/hooks/github/event_hooks.py:88
 msgid "Status changed from GitHub commit"
-msgstr ""
+msgstr "Estado cambiado desde un commit de GitHub"
 
 #: taiga/hooks/github/event_hooks.py:113 taiga/hooks/gitlab/event_hooks.py:114
 msgid "Invalid issue information"
-msgstr ""
+msgstr "Información inválida de Issue"
 
 #: taiga/hooks/github/event_hooks.py:128
 msgid "Created from GitHub"
-msgstr ""
+msgstr "Creado en GitHub"
 
 #: taiga/hooks/github/event_hooks.py:135 taiga/hooks/github/event_hooks.py:144
 msgid "Invalid issue comment information"
-msgstr ""
+msgstr "Información de comentario de Issue inválida"
 
 #: taiga/hooks/github/event_hooks.py:152
 msgid ""
@@ -714,10 +699,13 @@ msgid ""
 "\n"
 "{}"
 msgstr ""
+"De GitHub:\n"
+"\n"
+"{}"
 
 #: taiga/hooks/gitlab/event_hooks.py:87
 msgid "Status changed from GitLab commit"
-msgstr ""
+msgstr "Estado cambiado desde un commit de GitLab"
 
 #: taiga/hooks/gitlab/event_hooks.py:129
 msgid "Created from GitLab"
@@ -731,7 +719,7 @@ msgstr "Ver proyecto"
 #: taiga/permissions/permissions.py:22 taiga/permissions/permissions.py:32
 #: taiga/permissions/permissions.py:54
 msgid "View milestones"
-msgstr ""
+msgstr "Ver sprints"
 
 #: taiga/permissions/permissions.py:23 taiga/permissions/permissions.py:33
 msgid "View user stories"
@@ -803,15 +791,15 @@ msgstr "Modificar enlace wiki"
 
 #: taiga/permissions/permissions.py:55
 msgid "Add milestone"
-msgstr ""
+msgstr "Añadir sprint"
 
 #: taiga/permissions/permissions.py:56
 msgid "Modify milestone"
-msgstr ""
+msgstr "Modificar sprint"
 
 #: taiga/permissions/permissions.py:57
 msgid "Delete milestone"
-msgstr ""
+msgstr "Borrar sprint"
 
 #: taiga/permissions/permissions.py:59
 msgid "View user story"
@@ -893,21 +881,21 @@ msgstr "Nombre de plantilla invalido"
 msgid "Not valid template description"
 msgstr "Descripción de plantilla invalida"
 
-#: taiga/projects/api.py:469 taiga/projects/serializers.py:235
+#: taiga/projects/api.py:469 taiga/projects/serializers.py:256
 msgid "At least one of the user must be an active admin"
-msgstr ""
+msgstr "Al menos uno de los usuario debe ser un administrador."
 
 #: taiga/projects/api.py:499
 msgid "You don't have permisions to see that."
-msgstr ""
+msgstr "No tienes suficientes permisos para ver esto."
 
 #: taiga/projects/attachments/api.py:47
 msgid "Non partial updates not supported"
-msgstr ""
+msgstr "La actualización parcial no está soportada."
 
 #: taiga/projects/attachments/api.py:62
 msgid "Project ID not matches between object and project"
-msgstr ""
+msgstr "El ID de proyecto no coincide entre el adjunto y un proyecto"
 
 #: taiga/projects/attachments/models.py:54 taiga/projects/issues/models.py:38
 #: taiga/projects/milestones/models.py:39 taiga/projects/models.py:134
@@ -932,7 +920,7 @@ msgstr "Proyecto"
 
 #: taiga/projects/attachments/models.py:58
 msgid "content type"
-msgstr ""
+msgstr "típo de contenido"
 
 #: taiga/projects/attachments/models.py:60
 msgid "object id"
@@ -976,15 +964,15 @@ msgstr "orden"
 
 #: taiga/projects/choices.py:21
 msgid "AppearIn"
-msgstr ""
+msgstr "AppearIn"
 
 #: taiga/projects/choices.py:22
 msgid "Jitsi"
-msgstr ""
+msgstr "Jitsi"
 
 #: taiga/projects/choices.py:23
 msgid "Talky"
-msgstr ""
+msgstr "Talky"
 
 #: taiga/projects/custom_attributes/models.py:31
 #: taiga/projects/milestones/models.py:34 taiga/projects/models.py:123
@@ -1040,7 +1028,7 @@ msgstr "Borrar"
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:22
 #, python-format
 msgid "%(role)s role points"
-msgstr ""
+msgstr "pntos del rol %(role)s"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:25
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:130
@@ -1048,7 +1036,7 @@ msgstr ""
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:156
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:193
 msgid "from"
-msgstr ""
+msgstr "de"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:31
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:141
@@ -1057,62 +1045,62 @@ msgstr ""
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:179
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:199
 msgid "to"
-msgstr ""
+msgstr "a"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:43
 msgid "Added new attachment"
-msgstr ""
+msgstr "Nuevo adjunto añadido"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:61
 msgid "Updated attachment"
-msgstr ""
+msgstr "Adjunto actualizado"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:67
 msgid "deprecated"
-msgstr ""
+msgstr "obsoleto"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:69
 msgid "not deprecated"
-msgstr ""
+msgstr "no obsoleto"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:85
 msgid "Deleted attachment"
-msgstr ""
+msgstr "Adjunto borrado"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:104
 msgid "added"
-msgstr ""
+msgstr "añadido"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:109
 msgid "removed"
-msgstr ""
+msgstr "borrado"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:134
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:145
 #: taiga/projects/services/stats.py:124 taiga/projects/services/stats.py:125
 msgid "Unassigned"
-msgstr ""
+msgstr "No asignado"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-html.jinja:211
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:86
 msgid "-deleted-"
-msgstr ""
+msgstr "-borrado-"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:20
 msgid "to:"
-msgstr ""
+msgstr "a:"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:20
 msgid "from:"
-msgstr ""
+msgstr "de:"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:26
 msgid "Added"
-msgstr ""
+msgstr "Añadido"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:33
 msgid "Changed"
-msgstr ""
+msgstr "Cambiado"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:40
 msgid "Deleted"
@@ -1120,162 +1108,164 @@ msgstr "Borrado"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:54
 msgid "added:"
-msgstr ""
+msgstr "añadido:"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:57
 msgid "removed:"
-msgstr ""
+msgstr "borrado:"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:62
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:79
 msgid "From:"
-msgstr ""
+msgstr "De:"
 
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:63
 #: taiga/projects/history/templates/emails/includes/fields_diff-text.jinja:80
 msgid "To:"
-msgstr ""
+msgstr "A:"
 
 #: taiga/projects/history/templatetags/functions.py:26
 #: taiga/projects/wiki/models.py:32
 msgid "content"
-msgstr ""
+msgstr "contenido"
 
 #: taiga/projects/history/templatetags/functions.py:27
 #: taiga/projects/mixins/blocked.py:31
 msgid "blocked note"
-msgstr ""
+msgstr "nota de bloqueo"
 
 #: taiga/projects/issues/api.py:139
 msgid "You don't have permissions to set this sprint to this issue."
-msgstr ""
+msgstr "No tienes permisos para asignar un sprint a esta petición."
 
 #: taiga/projects/issues/api.py:143
 msgid "You don't have permissions to set this status to this issue."
-msgstr ""
+msgstr "No tienes permisos para asignar un estado a esta petición."
 
 #: taiga/projects/issues/api.py:147
 msgid "You don't have permissions to set this severity to this issue."
-msgstr ""
+msgstr "No tienes permisos para establecer la gravedad de esta petición."
 
 #: taiga/projects/issues/api.py:151
 msgid "You don't have permissions to set this priority to this issue."
-msgstr ""
+msgstr "No tienes permiso para establecer la prioridad de esta petición."
 
 #: taiga/projects/issues/api.py:155
 msgid "You don't have permissions to set this type to this issue."
-msgstr ""
+msgstr "No tienes permiso para establecer el tipo de esta petición."
 
 #: taiga/projects/issues/models.py:36 taiga/projects/tasks/models.py:35
 #: taiga/projects/userstories/models.py:57
 msgid "ref"
-msgstr ""
+msgstr "ref"
 
 #: taiga/projects/issues/models.py:40 taiga/projects/tasks/models.py:39
 #: taiga/projects/userstories/models.py:67
 msgid "status"
-msgstr ""
+msgstr "estado"
 
 #: taiga/projects/issues/models.py:42
 msgid "severity"
-msgstr ""
+msgstr "gravedad"
 
 #: taiga/projects/issues/models.py:44
 msgid "priority"
-msgstr ""
+msgstr "prioridad"
 
 #: taiga/projects/issues/models.py:46
 msgid "type"
-msgstr ""
+msgstr "tipo"
 
 #: taiga/projects/issues/models.py:49 taiga/projects/tasks/models.py:44
 #: taiga/projects/userstories/models.py:60
 msgid "milestone"
-msgstr ""
+msgstr "sprint"
 
 #: taiga/projects/issues/models.py:58 taiga/projects/tasks/models.py:51
 msgid "finished date"
-msgstr ""
+msgstr "fecha de finalización"
 
 #: taiga/projects/issues/models.py:60 taiga/projects/tasks/models.py:53
 #: taiga/projects/userstories/models.py:89
 msgid "subject"
-msgstr ""
+msgstr "asunto"
 
 #: taiga/projects/issues/models.py:64 taiga/projects/tasks/models.py:63
 #: taiga/projects/userstories/models.py:93
 msgid "assigned to"
-msgstr ""
+msgstr "asignado a"
 
 #: taiga/projects/issues/models.py:66 taiga/projects/tasks/models.py:67
 #: taiga/projects/userstories/models.py:103
 msgid "external reference"
-msgstr ""
+msgstr "referencia externa"
 
 #: taiga/projects/milestones/models.py:37 taiga/projects/models.py:125
 #: taiga/projects/models.py:352 taiga/projects/models.py:416
 #: taiga/projects/models.py:499 taiga/projects/models.py:557
 #: taiga/projects/wiki/models.py:30 taiga/users/models.py:182
 msgid "slug"
-msgstr ""
+msgstr "slug"
 
 #: taiga/projects/milestones/models.py:42
 msgid "estimated start date"
-msgstr ""
+msgstr "fecha estimada de comienzo"
 
 #: taiga/projects/milestones/models.py:43
 msgid "estimated finish date"
-msgstr ""
+msgstr "fecha estimada de finalización"
 
 #: taiga/projects/milestones/models.py:50 taiga/projects/models.py:356
 #: taiga/projects/models.py:420 taiga/projects/models.py:503
 msgid "is closed"
-msgstr ""
+msgstr "está cerrada"
 
 #: taiga/projects/milestones/models.py:52
 msgid "disponibility"
-msgstr ""
+msgstr "disponibilidad"
 
 #: taiga/projects/milestones/models.py:75
 msgid "The estimated start must be previous to the estimated finish."
 msgstr ""
+"La fecha de inicio estimada debe ser previa a la fecha de finalización "
+"estimada."
 
 #: taiga/projects/milestones/validators.py:12
 msgid "There's no sprint with that id"
-msgstr ""
+msgstr "No hay sprints con este id"
 
 #: taiga/projects/mixins/blocked.py:29
 msgid "is blocked"
-msgstr ""
+msgstr "está bloqueada"
 
 #: taiga/projects/mixins/ordering.py:47
 #, python-brace-format
-msgid "{param} parameter is mandatory"
-msgstr ""
+msgid "'{param}' parameter is mandatory"
+msgstr "el parámetro '{param}' es obligatório"
 
 #: taiga/projects/mixins/ordering.py:51
-msgid "project parameter is mandatory"
-msgstr ""
+msgid "'project' parameter is mandatory"
+msgstr "el parámetro 'project' es obligatório"
 
 #: taiga/projects/models.py:59
 msgid "email"
-msgstr ""
+msgstr "email"
 
 #: taiga/projects/models.py:61
-msgid "creado el"
-msgstr ""
+msgid "create at"
+msgstr "creado el"
 
 #: taiga/projects/models.py:63 taiga/users/models.py:126
 msgid "token"
-msgstr ""
+msgstr "token"
 
 #: taiga/projects/models.py:69
 msgid "invitation extra text"
-msgstr ""
+msgstr "texto extra de la invitación"
 
 #: taiga/projects/models.py:72
 msgid "user order"
-msgstr ""
+msgstr "orden del usuario"
 
 #: taiga/projects/models.py:78
 msgid "The user is already member of the project"
@@ -1315,7 +1305,7 @@ msgstr "miembros"
 
 #: taiga/projects/models.py:139
 msgid "total of milestones"
-msgstr ""
+msgstr "total de sprints"
 
 #: taiga/projects/models.py:140
 msgid "total story points"
@@ -1323,11 +1313,11 @@ msgstr "puntos de historia totales"
 
 #: taiga/projects/models.py:143 taiga/projects/models.py:570
 msgid "active backlog panel"
-msgstr ""
+msgstr "panel de backlog activado"
 
 #: taiga/projects/models.py:145 taiga/projects/models.py:572
 msgid "active kanban panel"
-msgstr ""
+msgstr "panel de kanban activado"
 
 #: taiga/projects/models.py:147 taiga/projects/models.py:574
 msgid "active wiki panel"
@@ -1343,7 +1333,7 @@ msgstr "sistema de videoconferencia"
 
 #: taiga/projects/models.py:154 taiga/projects/models.py:581
 msgid "videoconference room salt"
-msgstr ""
+msgstr "salt de la sala de videoconferencia"
 
 #: taiga/projects/models.py:159
 msgid "creation template"
@@ -1390,7 +1380,7 @@ msgstr "valor"
 
 #: taiga/projects/models.py:567
 msgid "default owner's role"
-msgstr ""
+msgstr "rol por defecto para el propietario"
 
 #: taiga/projects/models.py:583
 msgid "default options"
@@ -1431,15 +1421,15 @@ msgstr "roles"
 
 #: taiga/projects/notifications/choices.py:28
 msgid "Not watching"
-msgstr ""
+msgstr "No observado"
 
 #: taiga/projects/notifications/choices.py:29
 msgid "Watching"
-msgstr ""
+msgstr "Observado"
 
 #: taiga/projects/notifications/choices.py:30
 msgid "Ignoring"
-msgstr ""
+msgstr "Ignorado"
 
 #: taiga/projects/notifications/mixins.py:87
 msgid "watchers"
@@ -1447,24 +1437,25 @@ msgstr "observadores"
 
 #: taiga/projects/notifications/models.py:59
 msgid "created date time"
-msgstr ""
+msgstr "fecha y hora de creación"
 
 #: taiga/projects/notifications/models.py:61
 msgid "updated date time"
-msgstr ""
+msgstr "fecha y hora de actualización"
 
 #: taiga/projects/notifications/models.py:63
 msgid "history entries"
-msgstr ""
+msgstr "entradas del histórico"
 
 #: taiga/projects/notifications/models.py:66
 msgid "notify users"
-msgstr ""
+msgstr "usuarios notificados"
 
 #: taiga/projects/notifications/services.py:63
 #: taiga/projects/notifications/services.py:77
 msgid "Notify exists for specified user and project"
 msgstr ""
+"Ya existe una política de notificación para este usuario en el proyecto."
 
 #: taiga/projects/notifications/templates/emails/wiki/wikipage-change-subject.jinja:1
 #, python-format
@@ -1472,6 +1463,8 @@ msgid ""
 "\n"
 "[%(project)s] Updated the Wiki Page \"%(page)s\"\n"
 msgstr ""
+"\n"
+"[%(project)s] Actualizada la página del wiki \"%(page)s\"\n"
 
 #: taiga/projects/notifications/templates/emails/wiki/wikipage-create-subject.jinja:1
 #, python-format
@@ -1479,6 +1472,8 @@ msgid ""
 "\n"
 "[%(project)s] Created the Wiki Page \"%(page)s\"\n"
 msgstr ""
+"\n"
+"[%(project)s] Creada la página del wiki \"%(page)s\"\n"
 
 #: taiga/projects/notifications/templates/emails/wiki/wikipage-delete-subject.jinja:1
 #, python-format
@@ -1486,6 +1481,8 @@ msgid ""
 "\n"
 "[%(project)s] Deleted the Wiki Page \"%(page)s\"\n"
 msgstr ""
+"\n"
+"[%(project)s] Borrada la página del wiki \"%(page)s\"\n"
 
 #: taiga/projects/notifications/validators.py:44
 msgid "Watchers contains invalid users"
@@ -1493,69 +1490,70 @@ msgstr "Los observadores tienen usuarios invalidos"
 
 #: taiga/projects/occ/mixins.py:35
 msgid "The version must be an integer"
-msgstr ""
+msgstr "La versión debe ser un número entero"
 
 #: taiga/projects/occ/mixins.py:56
 msgid "The version is not valid"
-msgstr ""
+msgstr "La versión no es válida"
 
 #: taiga/projects/occ/mixins.py:72
 msgid "The version doesn't match with the current one"
-msgstr ""
+msgstr "Las version difiere de la actual"
 
 #: taiga/projects/occ/mixins.py:92
 msgid "version"
-msgstr ""
+msgstr "versión"
 
 #: taiga/projects/permissions.py:39
 msgid "You can't leave the project if there are no more owners"
 msgstr ""
+"No puedes abandonar este proyecto si no existen mas propietarios del mismo"
 
-#: taiga/projects/serializers.py:211
+#: taiga/projects/serializers.py:232
 msgid "Email address is already taken"
-msgstr ""
+msgstr "La dirección de email ya está en uso."
 
-#: taiga/projects/serializers.py:223
+#: taiga/projects/serializers.py:244
 msgid "Invalid role for the project"
-msgstr ""
+msgstr "Rol inválido para el proyecto"
 
-#: taiga/projects/serializers.py:321
+#: taiga/projects/serializers.py:342
 msgid "Total milestones must be major or equal to zero"
-msgstr ""
+msgstr "El número total de sprints debe ser mayor o igual a cero"
 
-#: taiga/projects/serializers.py:378
+#: taiga/projects/serializers.py:399
 msgid "Default options"
-msgstr ""
+msgstr "Opciones por defecto"
 
-#: taiga/projects/serializers.py:379
+#: taiga/projects/serializers.py:400
 msgid "User story's statuses"
-msgstr ""
+msgstr "Estados de historia de usuario"
 
-#: taiga/projects/serializers.py:380
+#: taiga/projects/serializers.py:401
 msgid "Points"
 msgstr "Puntos"
 
-#: taiga/projects/serializers.py:381
+#: taiga/projects/serializers.py:402
 msgid "Task's statuses"
 msgstr "Estado de tareas"
 
-#: taiga/projects/serializers.py:382
+#: taiga/projects/serializers.py:403
 msgid "Issue's statuses"
 msgstr "Estados de peticion"
 
-#: taiga/projects/serializers.py:383
+#: taiga/projects/serializers.py:404
 msgid "Issue's types"
 msgstr "Tipos de petición"
 
-#: taiga/projects/serializers.py:384
+#: taiga/projects/serializers.py:405
 msgid "Priorities"
 msgstr "Prioridades"
 
-#: taiga/projects/serializers.py:385
+#: taiga/projects/serializers.py:406
 msgid "Severities"
 msgstr "Gravedades"
 
-#: taiga/projects/serializers.py:386
+#: taiga/projects/serializers.py:407
 msgid "Roles"
 msgstr "Roles"
 
@@ -1570,28 +1568,28 @@ msgstr "Final de proyecto"
 #: taiga/projects/tasks/api.py:58 taiga/projects/tasks/api.py:61
 #: taiga/projects/tasks/api.py:64 taiga/projects/tasks/api.py:67
 msgid "You don't have permissions for add/modify this task."
-msgstr ""
+msgstr "No tienes permisos para añadir/modificar esta tarea."
 
 #: taiga/projects/tasks/models.py:56
 msgid "us order"
-msgstr ""
+msgstr "orden en la historia"
 
 #: taiga/projects/tasks/models.py:58
 msgid "taskboard order"
-msgstr ""
+msgstr "orden en el taskboard"
 
 #: taiga/projects/tasks/models.py:66
 msgid "is iocaine"
-msgstr ""
+msgstr "tiene iocaína"
 
 #: taiga/projects/tasks/validators.py:12
 msgid "There's no task with that id"
-msgstr ""
+msgstr "No existe ninguna tarea con este id"
 
 #: taiga/projects/templates/emails/membership_invitation-body-html.jinja:6
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:4
 msgid "someone"
-msgstr ""
+msgstr "alguien"
 
 #: taiga/projects/templates/emails/membership_invitation-body-html.jinja:18
 #, python-format
@@ -1602,18 +1600,22 @@ msgid ""
 "    <p><strong>%(extra)s</strong></p>\n"
 "        "
 msgstr ""
+"\n"
+"<p><small>Y ahora unas palabras de la persona<br/>que te ha invitado a "
+"unirte a Taiga:</small></p>\n"
+"<p><strong>%(extra)s</strong></p>"
 
 #: taiga/projects/templates/emails/membership_invitation-body-html.jinja:25
 msgid "Accept your invitation to Taiga"
-msgstr ""
+msgstr "Acepta tu invitación a Taiga"
 
 #: taiga/projects/templates/emails/membership_invitation-body-html.jinja:25
 msgid "Accept your invitation"
-msgstr ""
+msgstr "Acepta tu invitación"
 
 #: taiga/projects/templates/emails/membership_invitation-body-html.jinja:26
 msgid "The Taiga Team"
-msgstr ""
+msgstr "El Equipo de Taiga"
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:13
 #, python-format
@@ -1625,10 +1627,14 @@ msgid ""
 "%(extra)s\n"
 "    "
 msgstr ""
+"\n"
+"Y ahora unas palabras de la persona que te ha invitado a unirte a Taiga:\n"
+"\n"
+"%(extra)s"
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:19
-msgid "Accept your invitation to Taiga following whis link:"
-msgstr ""
+msgid "Accept your invitation to Taiga following this link:"
+msgstr "Acepta tu injvitación a Taiga accediendo a este enlace:"
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:21
 msgid ""
@@ -1636,6 +1642,9 @@ msgid ""
 "---\n"
 "The Taiga Team\n"
 msgstr ""
+"\n"
+"---\n"
+"El Equipo de Taiga\n"
 
 #: taiga/projects/templates/emails/membership_invitation-subject.jinja:1
 #, python-format
@@ -1643,6 +1652,9 @@ msgid ""
 "\n"
 "[Taiga] Invitation to join to the project '%(project)s'\n"
 msgstr ""
+"\n"
+"[Taiga] Invitación para unirte al proyecto '%(project)s'\n"
+"\n"
 
 #: taiga/projects/templates/emails/membership_notification-subject.jinja:1
 #, python-format
@@ -1650,6 +1662,8 @@ msgid ""
 "\n"
 "[Taiga] Added to the project '%(project)s'\n"
 msgstr ""
+"\n"
+"[Taiga] Añadido al proyecto '%(project)s'\n"
 
 #. Translators: Name of scrum project template.
 #: taiga/projects/translations.py:28
@@ -1666,6 +1680,13 @@ msgid ""
 "then allowed to grow and change as more is learned about the product and its "
 "customers"
 msgstr ""
+"La pila de historias de usuario o \"product backlog\" en Scrum es una lista "
+"priorizada de funcionalidades, que contiene una breve descripción de todas "
+"las funciones y requisitos que debe cumplir el producto. Si utilizamos "
+"Scrum, no es necesario al inicio del proyecto dedicar tiempo y esfuerzo para "
+"tener todas las funcionalidades definidas y priorizadas, si no más bien "
+"definir un producto base y dejar que vaya creciendo con el paso del tiempo y "
+"las nuevas necesidades del cliente."
 
 #. Translators: Name of kanban project template.
 #: taiga/projects/translations.py:33
@@ -1680,6 +1701,13 @@ msgid ""
 "process, from definition of a task to its delivery to the customer, is "
 "displayed for participants to see and team members pull work from a queue."
 msgstr ""
+"Kanban es un sistema de información para gestionar armónicamente el proceso "
+"de creación del producto garantizando el cumplimiento de los tiempos, "
+"detectando los posibles sobrecargas del equipo durante las diferentes fases. "
+"En esta aproximación, el proceso, desde su definición hasta la entrega final "
+"al cliente, se mostrará a los participantes, siendo los miembros del equipo "
+"los encargados de que el trabajo fluya haciendo pull de las tareas sobre las "
+"diferentes colas."
 
 #. Translators: User story point value (value = undefined)
 #: taiga/projects/translations.py:43
@@ -1729,7 +1757,7 @@ msgstr "10"
 #. Translators: User story point value (value = 13)
 #: taiga/projects/translations.py:61
 msgid "13"
-msgstr ""
+msgstr "13"
 
 #. Translators: User story point value (value = 20)
 #: taiga/projects/translations.py:63
@@ -1889,31 +1917,33 @@ msgid ""
 "Generating the user story [US #{ref} - {subject}](:us:{ref} \"US #{ref} - "
 "{subject}\")"
 msgstr ""
+"Generada la historia de usuario [US #{ref} - {subject}](:us:{ref} \"US "
+"#{ref} - {subject}\")"
 
 #: taiga/projects/userstories/models.py:37
 msgid "role"
-msgstr ""
+msgstr "rol"
 
 #: taiga/projects/userstories/models.py:75
 msgid "backlog order"
-msgstr ""
+msgstr "orden en el backlog"
 
 #: taiga/projects/userstories/models.py:77
 #: taiga/projects/userstories/models.py:79
 msgid "sprint order"
-msgstr ""
+msgstr "orden en el sprint"
 
 #: taiga/projects/userstories/models.py:87
 msgid "finish date"
-msgstr ""
+msgstr "fecha de finalización"
 
 #: taiga/projects/userstories/models.py:95
 msgid "is client requirement"
-msgstr ""
+msgstr "requerido por el cliente"
 
 #: taiga/projects/userstories/models.py:97
 msgid "is team requirement"
-msgstr ""
+msgstr "requerido por el equipo"
 
 #: taiga/projects/userstories/models.py:102
 msgid "generated from issue"
@@ -1921,40 +1951,40 @@ msgstr "generada desde una petición"
 
 #: taiga/projects/userstories/validators.py:28
 msgid "There's no user story with that id"
-msgstr ""
+msgstr "No existe ninguna historia de usuario con este id"
 
 #: taiga/projects/validators.py:28
 msgid "There's no project with that id"
-msgstr ""
+msgstr "No existe ningún proyecto con este id"
 
 #: taiga/projects/validators.py:37
 msgid "There's no user story status with that id"
-msgstr ""
+msgstr "No existe ningún estado de historia con este id"
 
 #: taiga/projects/validators.py:46
 msgid "There's no task status with that id"
-msgstr ""
+msgstr "No existe ningún estado de tarea con este id"
 
 #: taiga/projects/votes/models.py:31 taiga/projects/votes/models.py:32
 #: taiga/projects/votes/models.py:54
 msgid "Votes"
-msgstr ""
+msgstr "Votos"
 
 #: taiga/projects/votes/models.py:50
 msgid "votes"
-msgstr ""
+msgstr "votos"
 
 #: taiga/projects/votes/models.py:53
 msgid "Vote"
-msgstr ""
+msgstr "Voto"
 
 #: taiga/projects/wiki/api.py:60
-msgid "No content parameter"
-msgstr ""
+msgid "'content' parameter is mandatory"
+msgstr "el parámetro 'content' es obligatório"
 
 #: taiga/projects/wiki/api.py:63
-msgid "No project_id parameter"
-msgstr ""
+msgid "'project_id' parameter is mandatory"
+msgstr "el parámetro 'project_id' es obligatório"
 
 #: taiga/projects/wiki/models.py:36
 msgid "last modifier"
@@ -1962,7 +1992,7 @@ msgstr "última modificación por"
 
 #: taiga/projects/wiki/models.py:69
 msgid "href"
-msgstr ""
+msgstr "href"
 
 #: taiga/users/admin.py:50
 msgid "Personal info"
@@ -1974,7 +2004,7 @@ msgstr "Permisos"
 
 #: taiga/users/admin.py:53
 msgid "Important dates"
-msgstr ""
+msgstr "datos importántes"
 
 #: taiga/users/api.py:105 taiga/users/api.py:112
 msgid "Invalid username or email"
@@ -1986,27 +2016,27 @@ msgstr "¡Correo enviado con éxito!"
 
 #: taiga/users/api.py:134 taiga/users/api.py:139
 msgid "Token is invalid"
-msgstr ""
+msgstr "token inválido"
 
 #: taiga/users/api.py:160
 msgid "Current password parameter needed"
-msgstr ""
+msgstr "La contraseña actual es obligatoria."
 
 #: taiga/users/api.py:163
 msgid "New password parameter needed"
-msgstr ""
+msgstr "La nueva contraseña es obligatoria"
 
 #: taiga/users/api.py:166
 msgid "Invalid password length at least 6 charaters needed"
-msgstr ""
+msgstr "La longitud de la contraseña debe de ser de al menos 6 caracteres"
 
 #: taiga/users/api.py:169
 msgid "Invalid current password"
-msgstr ""
+msgstr "Contraseña actual inválida"
 
 #: taiga/users/api.py:185
 msgid "Incomplete arguments"
-msgstr ""
+msgstr "Argumentos incompletos"
 
 #: taiga/users/api.py:190
 msgid "Invalid image format"
@@ -2024,55 +2054,60 @@ msgstr "Email no válido"
 msgid ""
 "Invalid, are you sure the token is correct and you didn't use it before?"
 msgstr ""
+"Invalido, ¿estás seguro de que el token es correcto y no se ha usado antes?"
 
 #: taiga/users/api.py:298 taiga/users/api.py:306 taiga/users/api.py:309
 msgid "Invalid, are you sure the token is correct?"
-msgstr ""
+msgstr "Inválido, ¿estás seguro de que el token es correcto?"
 
 #: taiga/users/models.py:69
 msgid "superuser status"
-msgstr ""
+msgstr "es superusuario"
 
 #: taiga/users/models.py:70
 msgid ""
 "Designates that this user has all permissions without explicitly assigning "
 "them."
 msgstr ""
+"Otorga todos los permisos a este usuario sin necesidad de hacerlo "
+"explicitamente."
 
 #: taiga/users/models.py:100
 msgid "username"
-msgstr ""
+msgstr "nombre de usuario"
 
 #: taiga/users/models.py:101
 msgid ""
 "Required. 30 characters or fewer. Letters, numbers and /./-/_ characters"
-msgstr ""
+msgstr "Obligatorio. 30 caracteres o menos. Letras, números y /./-/_"
 
 #: taiga/users/models.py:104
 msgid "Enter a valid username."
-msgstr ""
+msgstr "Introduce un nombre de usuario válido"
 
 #: taiga/users/models.py:107
 msgid "active"
-msgstr ""
+msgstr "activo"
 
 #: taiga/users/models.py:108
 msgid ""
 "Designates whether this user should be treated as active. Unselect this "
 "instead of deleting accounts."
 msgstr ""
+"Denota a los usuarios activos. Desmárcalo para dar de baja/borrar a un "
+"usuario."
 
 #: taiga/users/models.py:114
 msgid "biography"
-msgstr ""
+msgstr "biografía"
 
 #: taiga/users/models.py:117
 msgid "photo"
-msgstr ""
+msgstr "foto"
 
 #: taiga/users/models.py:118
 msgid "date joined"
-msgstr ""
+msgstr "fecha de registro"
 
 #: taiga/users/models.py:120
 msgid "default language"
@@ -2088,7 +2123,7 @@ msgstr "añade color a las etiquetas"
 
 #: taiga/users/models.py:129
 msgid "email token"
-msgstr ""
+msgstr "token de email"
 
 #: taiga/users/models.py:131
 msgid "new email address"
@@ -2104,11 +2139,11 @@ msgstr "no válido"
 
 #: taiga/users/serializers.py:70
 msgid "Invalid username. Try with a different one."
-msgstr ""
+msgstr "Nombre de usuario inválido. Prueba con otro."
 
 #: taiga/users/services.py:48 taiga/users/services.py:52
 msgid "Username or password does not matches user."
-msgstr ""
+msgstr "Nombre de usuario o contraseña inválidos."
 
 #: taiga/users/templates/emails/change_email-body-html.jinja:4
 #, python-format
@@ -2122,6 +2157,15 @@ msgid ""
 "    <p><small>The Taiga Team</small></p>\n"
 "    "
 msgstr ""
+"\n"
+"<h1>Cambia tu email</h1>\n"
+"<p>Hola %(full_name)s,<br />por favor confirma que este email te pertenece</"
+"p>\n"
+"<a class=\"button\" href=\"%(url)s\" title=\"Confirmo mi email\">Confirmar "
+"dirección de email</a>\n"
+"<p>Puedes ignorar este correo si no has solicitado que cambiemos tu "
+"dirección email.</p>\n"
+"<p><small>El Equipo de Taiga</small></p>"
 
 #: taiga/users/templates/emails/change_email-body-text.jinja:1
 #, python-format
@@ -2136,10 +2180,19 @@ msgid ""
 "---\n"
 "The Taiga Team\n"
 msgstr ""
+"\n"
+"Hola %(full_name)s, por favor confirma tu email\n"
+"\n"
+"%(url)s\n"
+"\n"
+"Ignora este mensaje si no has solucitado un cambio de email.\n"
+"\n"
+"---\n"
+"El Equipo de Taiga\n"
 
 #: taiga/users/templates/emails/change_email-subject.jinja:1
 msgid "[Taiga] Change email"
-msgstr ""
+msgstr "[Taiga] Cambiar email"
 
 #: taiga/users/templates/emails/password_recovery-body-text.jinja:1
 #, python-format
@@ -2154,10 +2207,19 @@ msgid ""
 "---\n"
 "The Taiga Team\n"
 msgstr ""
+"\n"
+"Hola %(full_name)s, nos has pedido que recuperemos tu contraseña\n"
+"\n"
+"%(url)s\n"
+"\n"
+"Ignora este mensaje si no lo has solicitado\n"
+"\n"
+"---\n"
+"El Equipo de Taiga\n"
 
 #: taiga/users/templates/emails/password_recovery-subject.jinja:1
 msgid "[Taiga] Password recovery"
-msgstr ""
+msgstr "[Taiga] Recuperación de contraseña"
 
 #: taiga/users/templates/emails/registered_user-body-html.jinja:6
 msgid ""
@@ -2174,6 +2236,18 @@ msgid ""
 "        </td\n"
 "        "
 msgstr ""
+"\n"
+"<td>\n"
+"<h2>Gracias por registrarte en Taiga</h2>\n"
+"<h3>Esperamos que lo disfrutes<./h3>\n"
+"<p>Hemos creado Taiga porque queríamos que la herramienta de gestión de "
+"proyectos que se encuentra abierta durante todo el día en nuestros PCs "
+"sirviese para recordarnos continuamente por qué amamos nuestro trabajo: el "
+"clean code, un buen diseño, el trabajo en equipo y el open source.</p>\n"
+"<p>Hemos contruido Taiga teniendo siempre presente que debía ser una "
+"herramienta bonita, elegante, fácil de usar y, sobre todo, divertida- sin "
+"renunciar a la flexibilidad y al poder.</p>\n"
+"<small>El Equipo de Taiga</small></td>"
 
 #: taiga/users/templates/emails/registered_user-body-html.jinja:23
 #, python-format
@@ -2184,6 +2258,9 @@ msgid ""
 "here</a>\n"
 "    "
 msgstr ""
+"\n"
+"<strong>Puedes borrar tu cuenta de usuario</strong> <a href=\"%(url)s\" "
+"title=\"Borrar tu cuenta de usuario\" style=\"color: #9dce0a\">desde aquí</a>"
 
 #: taiga/users/templates/emails/registered_user-body-text.jinja:1
 msgid ""
@@ -2202,6 +2279,22 @@ msgid ""
 "--\n"
 "The taiga Team\n"
 msgstr ""
+"\n"
+"Gracias por registrarte en Taiga\n"
+"\n"
+"Esperamos que lo disfrutes\n"
+"\n"
+"Hemos creado Taiga porque queríamos que la herramienta de gestión de "
+"proyectos que se encuentra abierta durante todo el día en nuestros PCs "
+"sirviese para recordarnos continuamente por qué amamos nuestro trabajo: el "
+"clean code, un buen diseño, el trabajo en equipo y el open source.\n"
+"\n"
+"Hemos contruido Taiga teniendo siempre presente que debía ser una "
+"herramienta bonita, elegante, fácil de usar y, sobre todo, divertida- sin "
+"renunciar a la flexibilidad y al poder.\n"
+"\n"
+"--\n"
+"El Equipo de Taiga\n"
 
 #: taiga/users/templates/emails/registered_user-body-text.jinja:13
 #, python-format
@@ -2209,6 +2302,9 @@ msgid ""
 "\n"
 "You may remove your account from this service: %(url)s\n"
 msgstr ""
+"\n"
+"Puedes eliminar tu cuenta accediendo a este link: %(url)s\n"
+"\n"
 
 #: taiga/users/templates/emails/registered_user-subject.jinja:1
 msgid "You've been Taigatized!"
@@ -2216,16 +2312,16 @@ msgstr "¡Te hemos Taigatizado!"
 
 #: taiga/users/validators.py:29
 msgid "There's no role with that id"
-msgstr ""
+msgstr "No existe ningún rol con este id"
 
 #: taiga/userstorage/api.py:50
 msgid ""
 "Duplicate key value violates unique constraint. Key '{}' already exists."
-msgstr ""
+msgstr "Violación de una restricción de unicidad. La clave '{}' ya existe."
 
 #: taiga/userstorage/models.py:30
 msgid "key"
-msgstr ""
+msgstr "clave"
 
 #: taiga/webhooks/models.py:28 taiga/webhooks/models.py:38
 msgid "URL"
@@ -2233,27 +2329,27 @@ msgstr "URL"
 
 #: taiga/webhooks/models.py:29
 msgid "secret key"
-msgstr ""
+msgstr "clave secreta"
 
 #: taiga/webhooks/models.py:39
 msgid "status code"
-msgstr ""
+msgstr "código de estado"
 
 #: taiga/webhooks/models.py:40
 msgid "request data"
-msgstr ""
+msgstr "datos de petición"
 
 #: taiga/webhooks/models.py:41
 msgid "request headers"
-msgstr ""
+msgstr "cabeceras de la petición"
 
 #: taiga/webhooks/models.py:42
 msgid "response data"
-msgstr ""
+msgstr "datos de respuesta"
 
 #: taiga/webhooks/models.py:43
 msgid "response headers"
-msgstr ""
+msgstr "cabeceras de la respuesta"
 
 #: taiga/webhooks/models.py:44
 msgid "duration"
diff --git a/taiga/locale/fi/LC_MESSAGES/django.po b/taiga/locale/fi/LC_MESSAGES/django.po
index 27718112..4b6d3db6 100644
--- a/taiga/locale/fi/LC_MESSAGES/django.po
+++ b/taiga/locale/fi/LC_MESSAGES/django.po
@@ -9,8 +9,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: taiga-back\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2015-05-04 11:07+0200\n"
-"PO-Revision-Date: 2015-05-04 09:08+0000\n"
+"POT-Creation-Date: 2015-05-04 18:39+0200\n"
+"PO-Revision-Date: 2015-05-04 19:22+0000\n"
 "Last-Translator: David Barragán <bameda@gmail.com>\n"
 "Language-Team: Finnish (http://www.transifex.com/projects/p/taiga-back/"
 "language/fi/)\n"
@@ -183,16 +183,6 @@ msgstr ""
 "Anna kelvollinen kuva. Annettu ei ollut tunnistettava kuva tai se oli "
 "vioittunut."
 
-#: taiga/base/api/mixins.py:98
-msgid ""
-"The `allow_empty` parameter is due to be deprecated. To use "
-"`allow_empty=False` style behavior, You should override `get_queryset()` and "
-"explicitly raise a 404 on empty querysets."
-msgstr ""
-"`allow_empty` parametri tullaan poistamaan. Käyttääksesi `allow_empty=False` "
-"merkintää uudelleen määrittele `get_queryset()` ja anna 404 virhe tyhjälle "
-"kyselylle."
-
 #: taiga/base/api/pagination.py:115
 msgid "Page is not 'last', nor can it be converted to an int."
 msgstr "Sivu ei ole 'viimeinen', ekä sitä pystytä muuntamaan numeroksi."
@@ -242,23 +232,6 @@ msgstr "Virheellinen linkki - kohdetta ei löydy."
 msgid "Incorrect type.  Expected url string, received %s."
 msgstr "Väärä tyyppi. Odotan URL-merkkijonoa, sain %s."
 
-#: taiga/base/api/serializers.py:77
-#, python-brace-format
-msgid "{0} is not a Django model"
-msgstr "{0} ei ole Django malli"
-
-#: taiga/base/api/serializers.py:226
-msgid "instance should be a queryset or other iterable with many=True"
-msgstr "instanssin pitäisi olla kyselysetti tai iteroitavissa: monta=True"
-
-#: taiga/base/api/serializers.py:229
-msgid ""
-"allow_add_remove should only be used for bulk updates, but you have not set "
-"many=True"
-msgstr ""
-"allow_add_remove should only be used for bulk updates, but you have not set "
-"many=True"
-
 #: taiga/base/api/serializers.py:296
 msgid "Invalid data"
 msgstr "Virheellinen data"
@@ -283,33 +256,10 @@ msgstr "Ei löytynyt"
 msgid "Permission denied"
 msgstr "Ei käyttöoikeutta"
 
-#: taiga/base/api/views.py:352
-#, python-format
-msgid ""
-"Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be "
-"returned from the view, but received a `%s`"
-msgstr ""
-"Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be "
-"returned from the view, but received a `%s`"
-
 #: taiga/base/api/views.py:451
 msgid "Server application error"
 msgstr "Palvelinsovelluksen virhe"
 
-#: taiga/base/api/viewsets.py:56
-#, python-format
-msgid ""
-"You tried to pass in the %s method name as a keyword argument to %s(). Don't "
-"do that."
-msgstr ""
-"You tried to pass in the %s method name as a keyword argument to %s(). Don't "
-"do that."
-
-#: taiga/base/api/viewsets.py:60
-#, python-format
-msgid "%s() received an invalid keyword %r"
-msgstr "%s() received an invalid keyword %r"
-
 #: taiga/base/connectors/exceptions.py:24
 msgid "Connection error."
 msgstr "Yhteysvirhe."
@@ -385,11 +335,6 @@ msgstr "Precondition error"
 msgid "Error in filter params types."
 msgstr "Error in filter params types."
 
-#: taiga/base/filters.py:118 taiga/base/filters.py:207
-#: taiga/base/filters.py:264
-msgid "Filtering project diferent value than an integer: {}"
-msgstr "Filtering project diferent value than an integer: {}"
-
 #: taiga/base/filters.py:121 taiga/base/filters.py:210
 #: taiga/base/filters.py:266
 msgid "'project' must be an integer value."
@@ -489,10 +434,6 @@ msgstr ""
 "\n"
 "Kommentti: %(comment)s"
 
-#: taiga/base/utils/signals.py:27
-msgid "The parameters must be lists of at least one parameter (the signal)."
-msgstr "The parameters must be lists of at least one parameter (the signal)."
-
 #: taiga/export_import/api.py:183
 msgid "Needed dump file"
 msgstr "Tarvitaan tiedosto"
@@ -502,20 +443,20 @@ msgid "Invalid dump format"
 msgstr "Virheellinen tiedostomuoto"
 
 #: taiga/export_import/dump_service.py:96
-msgid "error importing project"
-msgstr "virhe projektin tuonnissa"
+msgid "error importing project data"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:109
-msgid "error importing choices"
-msgstr "virhe vaihtoehtojen tuonnissa"
+msgid "error importing lists of project attributes"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:114
-msgid "error importing default choices"
-msgstr "virhe oletusvalintojen tuonnissa"
+msgid "error importing default project attributes values"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:124
-msgid "error importing custom fields"
-msgstr "virhe omien kenttien tuonnissa"
+msgid "error importing custom attributes"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:129
 msgid "error importing roles"
@@ -526,8 +467,8 @@ msgid "error importing memberships"
 msgstr "virhe jäsenyyksien tuonnissa"
 
 #: taiga/export_import/dump_service.py:149
-msgid "error importing milestones"
-msgstr "virhe virstapylväiden tuonnissa"
+msgid "error importing sprints"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:154
 msgid "error importing wiki pages"
@@ -538,7 +479,6 @@ msgid "error importing wiki links"
 msgstr "virhe viki-linkkien tuonnissa"
 
 #: taiga/export_import/dump_service.py:164
-#: taiga/export_import/dump_service.py:174
 msgid "error importing issues"
 msgstr "virhe pyyntöjen tuonnissa"
 
@@ -546,9 +486,13 @@ msgstr "virhe pyyntöjen tuonnissa"
 msgid "error importing user stories"
 msgstr "virhe käyttäjätarinoiden tuonnissa"
 
+#: taiga/export_import/dump_service.py:174
+msgid "error importing tasks"
+msgstr ""
+
 #: taiga/export_import/dump_service.py:179
-msgid "error importing colors"
-msgstr "virhe värien tuonnissa"
+msgid "error importing tags"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:183
 msgid "error importing timelines"
@@ -571,7 +515,7 @@ msgstr "Sisältää vieheellisiä omia kenttiä."
 #: taiga/export_import/serializers.py:466
 #: taiga/projects/milestones/serializers.py:63
 #: taiga/projects/serializers.py:65 taiga/projects/serializers.py:91
-#: taiga/projects/serializers.py:114 taiga/projects/serializers.py:149
+#: taiga/projects/serializers.py:121 taiga/projects/serializers.py:163
 msgid "Name duplicated for the project"
 msgstr "Nimi on tuplana projektille"
 
@@ -924,7 +868,7 @@ msgstr "Virheellinen mallipohjan nimi"
 msgid "Not valid template description"
 msgstr "Virheellinen mallipohjan kuvaus"
 
-#: taiga/projects/api.py:469 taiga/projects/serializers.py:235
+#: taiga/projects/api.py:469 taiga/projects/serializers.py:256
 msgid "At least one of the user must be an active admin"
 msgstr "Vähintään yhden käyttäjän pitää olla aktiivinen ylläpitäjä"
 
@@ -1281,20 +1225,20 @@ msgstr "on lukittu"
 
 #: taiga/projects/mixins/ordering.py:47
 #, python-brace-format
-msgid "{param} parameter is mandatory"
-msgstr "{param} parametri on pakollinen"
+msgid "'{param}' parameter is mandatory"
+msgstr "'{param}' parametri on pakollinen"
 
 #: taiga/projects/mixins/ordering.py:51
-msgid "project parameter is mandatory"
-msgstr "projekti-parametri on pakollinen"
+msgid "'project' parameter is mandatory"
+msgstr "'project' parametri on pakollinen"
 
 #: taiga/projects/models.py:59
 msgid "email"
 msgstr "sähköposti"
 
 #: taiga/projects/models.py:61
-msgid "creado el"
-msgstr "creado el"
+msgid "create at"
+msgstr ""
 
 #: taiga/projects/models.py:63 taiga/users/models.py:126
 msgid "token"
@@ -1548,51 +1492,51 @@ msgstr "versio"
 msgid "You can't leave the project if there are no more owners"
 msgstr "Et voi jättää projektia, jos olet ainoa omistaja"
 
-#: taiga/projects/serializers.py:211
+#: taiga/projects/serializers.py:232
 msgid "Email address is already taken"
 msgstr "Sähköpostiosoite on jo käytössä"
 
-#: taiga/projects/serializers.py:223
+#: taiga/projects/serializers.py:244
 msgid "Invalid role for the project"
 msgstr "Virheellinen rooli projektille"
 
-#: taiga/projects/serializers.py:321
+#: taiga/projects/serializers.py:342
 msgid "Total milestones must be major or equal to zero"
 msgstr "Virstapylväitä yhteensä pitää olla vähintään 0."
 
-#: taiga/projects/serializers.py:378
+#: taiga/projects/serializers.py:399
 msgid "Default options"
 msgstr "Oletusoptiot"
 
-#: taiga/projects/serializers.py:379
+#: taiga/projects/serializers.py:400
 msgid "User story's statuses"
 msgstr "Käyttäjätarinatilat"
 
-#: taiga/projects/serializers.py:380
+#: taiga/projects/serializers.py:401
 msgid "Points"
 msgstr "Pisteet"
 
-#: taiga/projects/serializers.py:381
+#: taiga/projects/serializers.py:402
 msgid "Task's statuses"
 msgstr "Tehtävien tilat"
 
-#: taiga/projects/serializers.py:382
+#: taiga/projects/serializers.py:403
 msgid "Issue's statuses"
 msgstr "Pyyntöjen tilat"
 
-#: taiga/projects/serializers.py:383
+#: taiga/projects/serializers.py:404
 msgid "Issue's types"
 msgstr "pyyntötyypit"
 
-#: taiga/projects/serializers.py:384
+#: taiga/projects/serializers.py:405
 msgid "Priorities"
 msgstr "Kiireellisyydet"
 
-#: taiga/projects/serializers.py:385
+#: taiga/projects/serializers.py:406
 msgid "Severities"
 msgstr "Vakavuudet"
 
-#: taiga/projects/serializers.py:386
+#: taiga/projects/serializers.py:407
 msgid "Roles"
 msgstr "Roolit"
 
@@ -1673,8 +1617,8 @@ msgstr ""
 "%(extra)s"
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:19
-msgid "Accept your invitation to Taiga following whis link:"
-msgstr "Hyväksy kutsu Taigaan tästä linkistä: "
+msgid "Accept your invitation to Taiga following this link:"
+msgstr ""
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:21
 msgid ""
@@ -2013,12 +1957,12 @@ msgid "Vote"
 msgstr "Äänestä"
 
 #: taiga/projects/wiki/api.py:60
-msgid "No content parameter"
-msgstr "Ei sisältöparametri"
+msgid "'content' parameter is mandatory"
+msgstr "'content' parametri on pakollinen"
 
 #: taiga/projects/wiki/api.py:63
-msgid "No project_id parameter"
-msgstr "No project_id parameter"
+msgid "'project_id' parameter is mandatory"
+msgstr "'project_id' parametri on pakollinen"
 
 #: taiga/projects/wiki/models.py:36
 msgid "last modifier"
diff --git a/taiga/locale/fr/LC_MESSAGES/django.po b/taiga/locale/fr/LC_MESSAGES/django.po
index 950813c3..c87bc864 100644
--- a/taiga/locale/fr/LC_MESSAGES/django.po
+++ b/taiga/locale/fr/LC_MESSAGES/django.po
@@ -12,8 +12,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: taiga-back\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2015-05-04 11:07+0200\n"
-"PO-Revision-Date: 2015-05-04 09:10+0000\n"
+"POT-Creation-Date: 2015-05-04 18:39+0200\n"
+"PO-Revision-Date: 2015-05-04 19:23+0000\n"
 "Last-Translator: David Barragán <bameda@gmail.com>\n"
 "Language-Team: French (http://www.transifex.com/projects/p/taiga-back/"
 "language/fr/)\n"
@@ -197,16 +197,6 @@ msgstr ""
 "Envoyez une image valide. Le fichier que vous avez envoyé n'était pas une "
 "image ou était une image corrompue."
 
-#: taiga/base/api/mixins.py:98
-msgid ""
-"The `allow_empty` parameter is due to be deprecated. To use "
-"`allow_empty=False` style behavior, You should override `get_queryset()` and "
-"explicitly raise a 404 on empty querysets."
-msgstr ""
-"Le paramètre `allow_empty` est amené à devenir obsolète. Pour obtenir le "
-"comportement de `allow_empty=False`, vous devez redéfinir `get_queryset()` "
-"et renvoyer une erreur 404 sur une requête vide."
-
 #: taiga/base/api/pagination.py:115
 msgid "Page is not 'last', nor can it be converted to an int."
 msgstr ""
@@ -258,24 +248,6 @@ msgstr "Hyperlien invalide - l'objet n'existe pas."
 msgid "Incorrect type.  Expected url string, received %s."
 msgstr "Type incorrect. Chaîne URL attendu, %s reçu."
 
-#: taiga/base/api/serializers.py:77
-#, python-brace-format
-msgid "{0} is not a Django model"
-msgstr "{0} n'est pas un modèle Django."
-
-#: taiga/base/api/serializers.py:226
-msgid "instance should be a queryset or other iterable with many=True"
-msgstr ""
-"L'instance devrait être une queryset ou un autre itérable avec many=True."
-
-#: taiga/base/api/serializers.py:229
-msgid ""
-"allow_add_remove should only be used for bulk updates, but you have not set "
-"many=True"
-msgstr ""
-"allow_add_remove ne devrait être utilisé que pour les mises à jour par lots, "
-"mais vous n'avez pas défini many=True."
-
 #: taiga/base/api/serializers.py:296
 msgid "Invalid data"
 msgstr "Donnée invalide"
@@ -302,33 +274,10 @@ msgstr "Non trouvé"
 msgid "Permission denied"
 msgstr "Permission refusée"
 
-#: taiga/base/api/views.py:352
-#, python-format
-msgid ""
-"Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be "
-"returned from the view, but received a `%s`"
-msgstr ""
-"Un objet `Response`, `HttpResponse` ou `HttpStreamingResponse` était attendu "
-"de la vue, mais un `%s` a été reçu"
-
 #: taiga/base/api/views.py:451
 msgid "Server application error"
 msgstr "Erreur du serveur d'application"
 
-#: taiga/base/api/viewsets.py:56
-#, python-format
-msgid ""
-"You tried to pass in the %s method name as a keyword argument to %s(). Don't "
-"do that."
-msgstr ""
-"Vous avez essayé de passer le nom de la méthode de %s comme argument mot clé "
-"à %s(). Ne faites pas cela."
-
-#: taiga/base/api/viewsets.py:60
-#, python-format
-msgid "%s() received an invalid keyword %r"
-msgstr "Mot clé %r invalide reçu par %s()"
-
 #: taiga/base/connectors/exceptions.py:24
 msgid "Connection error."
 msgstr "Erreur de connexion."
@@ -404,11 +353,6 @@ msgstr "Erreur de précondition"
 msgid "Error in filter params types."
 msgstr "Erreur dans les types de paramètres de filtres"
 
-#: taiga/base/filters.py:118 taiga/base/filters.py:207
-#: taiga/base/filters.py:264
-msgid "Filtering project diferent value than an integer: {}"
-msgstr "La valeur utilisée n'est pas un entier : {}"
-
 #: taiga/base/filters.py:121 taiga/base/filters.py:210
 #: taiga/base/filters.py:266
 msgid "'project' must be an integer value."
@@ -511,11 +455,6 @@ msgstr ""
 "    Commentaire : %(comment)s\n"
 "        "
 
-#: taiga/base/utils/signals.py:27
-msgid "The parameters must be lists of at least one parameter (the signal)."
-msgstr ""
-"Les paramètres doivent être des listes d'au moins un paramètre (le signal)."
-
 #: taiga/export_import/api.py:183
 msgid "Needed dump file"
 msgstr "Fichier de dump obligatoire"
@@ -525,20 +464,20 @@ msgid "Invalid dump format"
 msgstr "Format de dump invalide"
 
 #: taiga/export_import/dump_service.py:96
-msgid "error importing project"
-msgstr "Erreur à l'importation du projet"
+msgid "error importing project data"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:109
-msgid "error importing choices"
-msgstr "Erreur à l'importation des choix"
+msgid "error importing lists of project attributes"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:114
-msgid "error importing default choices"
-msgstr "Erreur à l'importation des choix par défaut"
+msgid "error importing default project attributes values"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:124
-msgid "error importing custom fields"
-msgstr "Erreur à l'importation des champs personnalisés"
+msgid "error importing custom attributes"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:129
 msgid "error importing roles"
@@ -549,8 +488,8 @@ msgid "error importing memberships"
 msgstr "Erreur à l'importation des groupes d'utilisateurs"
 
 #: taiga/export_import/dump_service.py:149
-msgid "error importing milestones"
-msgstr "erreur à l'importation des jalons"
+msgid "error importing sprints"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:154
 msgid "error importing wiki pages"
@@ -561,7 +500,6 @@ msgid "error importing wiki links"
 msgstr "Erreur à l'importation des liens Wiki"
 
 #: taiga/export_import/dump_service.py:164
-#: taiga/export_import/dump_service.py:174
 msgid "error importing issues"
 msgstr "erreur à l'importation des problèmes"
 
@@ -569,9 +507,13 @@ msgstr "erreur à l'importation des problèmes"
 msgid "error importing user stories"
 msgstr "erreur à l'importation des histoires utilisateur"
 
+#: taiga/export_import/dump_service.py:174
+msgid "error importing tasks"
+msgstr ""
+
 #: taiga/export_import/dump_service.py:179
-msgid "error importing colors"
-msgstr "erreur à l'importation des couleurs"
+msgid "error importing tags"
+msgstr ""
 
 #: taiga/export_import/dump_service.py:183
 msgid "error importing timelines"
@@ -594,7 +536,7 @@ msgstr "Contient des champs personnalisés non valides."
 #: taiga/export_import/serializers.py:466
 #: taiga/projects/milestones/serializers.py:63
 #: taiga/projects/serializers.py:65 taiga/projects/serializers.py:91
-#: taiga/projects/serializers.py:114 taiga/projects/serializers.py:149
+#: taiga/projects/serializers.py:121 taiga/projects/serializers.py:163
 msgid "Name duplicated for the project"
 msgstr "Nom dupliqué pour ce projet"
 
@@ -945,7 +887,7 @@ msgstr "Nom de modèle non valide"
 msgid "Not valid template description"
 msgstr "Description du modèle non valide"
 
-#: taiga/projects/api.py:469 taiga/projects/serializers.py:235
+#: taiga/projects/api.py:469 taiga/projects/serializers.py:256
 msgid "At least one of the user must be an active admin"
 msgstr "Au moins un utilisateur doit être un administrateur actif"
 
@@ -1302,20 +1244,20 @@ msgstr "est bloqué"
 
 #: taiga/projects/mixins/ordering.py:47
 #, python-brace-format
-msgid "{param} parameter is mandatory"
-msgstr "{param} paramètre obligatoire"
+msgid "'{param}' parameter is mandatory"
+msgstr "'{param}' paramètre obligatoire"
 
 #: taiga/projects/mixins/ordering.py:51
-msgid "project parameter is mandatory"
-msgstr "paramètre du projet est obligatoire"
+msgid "'project' parameter is mandatory"
+msgstr "'project' paramètre obligatoire"
 
 #: taiga/projects/models.py:59
 msgid "email"
 msgstr "email"
 
 #: taiga/projects/models.py:61
-msgid "creado el"
-msgstr "créé le"
+msgid "create at"
+msgstr ""
 
 #: taiga/projects/models.py:63 taiga/users/models.py:126
 msgid "token"
@@ -1570,51 +1512,51 @@ msgid "You can't leave the project if there are no more owners"
 msgstr ""
 "Vous ne pouvez pas quitter le projet si il n'y a plus d'autres propriétaires"
 
-#: taiga/projects/serializers.py:211
+#: taiga/projects/serializers.py:232
 msgid "Email address is already taken"
 msgstr "Adresse email déjà existante"
 
-#: taiga/projects/serializers.py:223
+#: taiga/projects/serializers.py:244
 msgid "Invalid role for the project"
 msgstr "Rôle non valide pour le projet"
 
-#: taiga/projects/serializers.py:321
+#: taiga/projects/serializers.py:342
 msgid "Total milestones must be major or equal to zero"
 msgstr "Le nombre de jalons doit être supérieur ou égal à zéro"
 
-#: taiga/projects/serializers.py:378
+#: taiga/projects/serializers.py:399
 msgid "Default options"
 msgstr "Options par défaut"
 
-#: taiga/projects/serializers.py:379
+#: taiga/projects/serializers.py:400
 msgid "User story's statuses"
 msgstr "Etats de la User Story"
 
-#: taiga/projects/serializers.py:380
+#: taiga/projects/serializers.py:401
 msgid "Points"
 msgstr "Points"
 
-#: taiga/projects/serializers.py:381
+#: taiga/projects/serializers.py:402
 msgid "Task's statuses"
 msgstr "Etats des tâches"
 
-#: taiga/projects/serializers.py:382
+#: taiga/projects/serializers.py:403
 msgid "Issue's statuses"
 msgstr "Statuts des problèmes"
 
-#: taiga/projects/serializers.py:383
+#: taiga/projects/serializers.py:404
 msgid "Issue's types"
 msgstr "Types de problèmes"
 
-#: taiga/projects/serializers.py:384
+#: taiga/projects/serializers.py:405
 msgid "Priorities"
 msgstr "Priorités"
 
-#: taiga/projects/serializers.py:385
+#: taiga/projects/serializers.py:406
 msgid "Severities"
 msgstr "Sévérités"
 
-#: taiga/projects/serializers.py:386
+#: taiga/projects/serializers.py:407
 msgid "Roles"
 msgstr "Rôles"
 
@@ -1696,8 +1638,8 @@ msgstr ""
 "    "
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:19
-msgid "Accept your invitation to Taiga following whis link:"
-msgstr "Acceptez votre invitation à Taiga en cliquant sur ce lien :"
+msgid "Accept your invitation to Taiga following this link:"
+msgstr ""
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:21
 msgid ""
@@ -2039,12 +1981,12 @@ msgid "Vote"
 msgstr "vote"
 
 #: taiga/projects/wiki/api.py:60
-msgid "No content parameter"
-msgstr "paramètre content absent"
+msgid "'content' parameter is mandatory"
+msgstr "'content' paramètre obligatoire"
 
 #: taiga/projects/wiki/api.py:63
-msgid "No project_id parameter"
-msgstr "Paramètre project_id absent"
+msgid "'project_id' parameter is mandatory"
+msgstr "'project_id' paramètre obligatoire"
 
 #: taiga/projects/wiki/models.py:36
 msgid "last modifier"
diff --git a/taiga/locale/zh-Hant/LC_MESSAGES/django.po b/taiga/locale/zh-Hant/LC_MESSAGES/django.po
index 8a98c880..21628951 100644
--- a/taiga/locale/zh-Hant/LC_MESSAGES/django.po
+++ b/taiga/locale/zh-Hant/LC_MESSAGES/django.po
@@ -11,9 +11,9 @@ msgid ""
 msgstr ""
 "Project-Id-Version: taiga-back\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2015-05-04 11:07+0200\n"
-"PO-Revision-Date: 2015-05-04 09:09+0000\n"
-"Last-Translator: David Barragán <bameda@gmail.com>\n"
+"POT-Creation-Date: 2015-05-04 18:39+0200\n"
+"PO-Revision-Date: 2015-05-05 01:14+0000\n"
+"Last-Translator: Chi-Hsun Tsai <chihsun.tsai@gmail.com>\n"
 "Language-Team: Chinese Traditional (http://www.transifex.com/projects/p/"
 "taiga-back/language/zh-Hant/)\n"
 "MIME-Version: 1.0\n"
@@ -179,15 +179,6 @@ msgid ""
 "corrupted image."
 msgstr "上傳有效圖片，你所上傳的檔案非圖檔或已損壞"
 
-#: taiga/base/api/mixins.py:98
-msgid ""
-"The `allow_empty` parameter is due to be deprecated. To use "
-"`allow_empty=False` style behavior, You should override `get_queryset()` and "
-"explicitly raise a 404 on empty querysets."
-msgstr ""
-"`allow_empty`參數將被棄用，要使用`allow_empty=False` 格式行為。你應覆蓋"
-"`get_queryset()`並利用404找不到檔案來表明其空白的查詢組"
-
 #: taiga/base/api/pagination.py:115
 msgid "Page is not 'last', nor can it be converted to an int."
 msgstr "頁數不是最後，或者它無法轉成整數　"
@@ -237,21 +228,6 @@ msgstr "無效的超鏈接 - 物件並不存在"
 msgid "Incorrect type.  Expected url string, received %s."
 msgstr "不正確類型，預期為網址格式，收到的是 %s."
 
-#: taiga/base/api/serializers.py:77
-#, python-brace-format
-msgid "{0} is not a Django model"
-msgstr "{0} 非Django 模式"
-
-#: taiga/base/api/serializers.py:226
-msgid "instance should be a queryset or other iterable with many=True"
-msgstr "物件類別應是一個詢問組或是其它迭代著many=True"
-
-#: taiga/base/api/serializers.py:229
-msgid ""
-"allow_add_remove should only be used for bulk updates, but you have not set "
-"many=True"
-msgstr "allow_add_remove s只能用於批次更新, 但你不能設 many=True"
-
 #: taiga/base/api/serializers.py:296
 msgid "Invalid data"
 msgstr "無效的資料"
@@ -276,31 +252,10 @@ msgstr "找不到"
 msgid "Permission denied"
 msgstr "許可遭拒絕 "
 
-#: taiga/base/api/views.py:352
-#, python-format
-msgid ""
-"Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be "
-"returned from the view, but received a `%s`"
-msgstr ""
-"預期 `Response`, `HttpResponse` 或 `HttpStreamingResponse`或返回這個檢視，而"
-"接收到 `%s`"
-
 #: taiga/base/api/views.py:451
 msgid "Server application error"
 msgstr "伺服器應用出錯"
 
-#: taiga/base/api/viewsets.py:56
-#, python-format
-msgid ""
-"You tried to pass in the %s method name as a keyword argument to %s(). Don't "
-"do that."
-msgstr "你試著要通過 %s 方式名稱作為一個關鍵值 %s(). 別這麼做"
-
-#: taiga/base/api/viewsets.py:60
-#, python-format
-msgid "%s() received an invalid keyword %r"
-msgstr "%s() 接到一個無效的關鍵字 %r"
-
 #: taiga/base/connectors/exceptions.py:24
 msgid "Connection error."
 msgstr "連結出錯"
@@ -376,11 +331,6 @@ msgstr "前提出錯"
 msgid "Error in filter params types."
 msgstr "過濾參數類型出錯"
 
-#: taiga/base/filters.py:118 taiga/base/filters.py:207
-#: taiga/base/filters.py:264
-msgid "Filtering project diferent value than an integer: {}"
-msgstr "過濾專案diferent值大於整數: {}"
-
 #: taiga/base/filters.py:121 taiga/base/filters.py:210
 #: taiga/base/filters.py:266
 msgid "'project' must be an integer value."
@@ -479,10 +429,6 @@ msgstr ""
 "\n"
 "評論: %(comment)s"
 
-#: taiga/base/utils/signals.py:27
-msgid "The parameters must be lists of at least one parameter (the signal)."
-msgstr "參數必須為列表中的一個 (信號)."
-
 #: taiga/export_import/api.py:183
 msgid "Needed dump file"
 msgstr "需要的堆存檔案"
@@ -492,57 +438,60 @@ msgid "Invalid dump format"
 msgstr "無效堆存格式"
 
 #: taiga/export_import/dump_service.py:96
-msgid "error importing project"
-msgstr "滙入專案有誤"
+msgid "error importing project data"
+msgstr "滙入重要專案資料出錯"
 
 #: taiga/export_import/dump_service.py:109
-msgid "error importing choices"
-msgstr "滙入選項有誤"
+msgid "error importing lists of project attributes"
+msgstr "滙入標籤出錯"
 
 #: taiga/export_import/dump_service.py:114
-msgid "error importing default choices"
-msgstr "滙入預設選項有誤"
+msgid "error importing default project attributes values"
+msgstr "滙入預設專案屬性數值出錯"
 
 #: taiga/export_import/dump_service.py:124
-msgid "error importing custom fields"
-msgstr "滙入慣例欄位有誤"
+msgid "error importing custom attributes"
+msgstr "滙入客制性屬出錯"
 
 #: taiga/export_import/dump_service.py:129
 msgid "error importing roles"
-msgstr "滙入角色有誤"
+msgstr "滙入角色出錯"
 
 #: taiga/export_import/dump_service.py:144
 msgid "error importing memberships"
-msgstr "滙入成員資格有誤"
+msgstr "滙入成員資格出錯"
 
 #: taiga/export_import/dump_service.py:149
-msgid "error importing milestones"
-msgstr "滙入里程碑有誤"
+msgid "error importing sprints"
+msgstr "滙入衝刺任務出錯"
 
 #: taiga/export_import/dump_service.py:154
 msgid "error importing wiki pages"
-msgstr "滙入維基頁有誤"
+msgstr "滙入維基頁出錯"
 
 #: taiga/export_import/dump_service.py:159
 msgid "error importing wiki links"
-msgstr "滙入維基連結有誤"
+msgstr "滙入維基連結出錯"
 
 #: taiga/export_import/dump_service.py:164
-#: taiga/export_import/dump_service.py:174
 msgid "error importing issues"
-msgstr "滙入問題有誤　"
+msgstr "滙入問題出錯"
 
 #: taiga/export_import/dump_service.py:169
 msgid "error importing user stories"
-msgstr "滙入使用者故事有誤"
+msgstr "滙入使用者故事出錯"
+
+#: taiga/export_import/dump_service.py:174
+msgid "error importing tasks"
+msgstr "滙入任務出錯"
 
 #: taiga/export_import/dump_service.py:179
-msgid "error importing colors"
-msgstr "滙入顏色有誤"
+msgid "error importing tags"
+msgstr "滙入標籤出錯"
 
 #: taiga/export_import/dump_service.py:183
 msgid "error importing timelines"
-msgstr "滙入時間軸有誤　"
+msgstr "滙入時間軸出錯"
 
 #: taiga/export_import/serializers.py:161
 msgid "{}=\"{}\" not found in this project"
@@ -561,7 +510,7 @@ msgstr "包括無效慣例欄位"
 #: taiga/export_import/serializers.py:466
 #: taiga/projects/milestones/serializers.py:63
 #: taiga/projects/serializers.py:65 taiga/projects/serializers.py:91
-#: taiga/projects/serializers.py:114 taiga/projects/serializers.py:149
+#: taiga/projects/serializers.py:121 taiga/projects/serializers.py:163
 msgid "Name duplicated for the project"
 msgstr "專案的名稱被複製了"
 
@@ -910,7 +859,7 @@ msgstr "非有效樣板名稱　"
 msgid "Not valid template description"
 msgstr "無效樣板描述"
 
-#: taiga/projects/api.py:469 taiga/projects/serializers.py:235
+#: taiga/projects/api.py:469 taiga/projects/serializers.py:256
 msgid "At least one of the user must be an active admin"
 msgstr "至少需有一位使用者擔任管理員"
 
@@ -1267,20 +1216,20 @@ msgstr "已封鎖"
 
 #: taiga/projects/mixins/ordering.py:47
 #, python-brace-format
-msgid "{param} parameter is mandatory"
-msgstr "{param} 參數為必要"
+msgid "'{param}' parameter is mandatory"
+msgstr "'{param}' 參數為必要"
 
 #: taiga/projects/mixins/ordering.py:51
-msgid "project parameter is mandatory"
-msgstr "專案參數為必要"
+msgid "'project' parameter is mandatory"
+msgstr "'project'參數為必要"
 
 #: taiga/projects/models.py:59
 msgid "email"
 msgstr "電子郵件"
 
 #: taiga/projects/models.py:61
-msgid "creado el"
-msgstr "creado el"
+msgid "create at"
+msgstr "創建於"
 
 #: taiga/projects/models.py:63 taiga/users/models.py:126
 msgid "token"
@@ -1534,51 +1483,51 @@ msgstr "版本"
 msgid "You can't leave the project if there are no more owners"
 msgstr "如果專案無所有者，你將無法脫離該專案"
 
-#: taiga/projects/serializers.py:211
+#: taiga/projects/serializers.py:232
 msgid "Email address is already taken"
 msgstr "電子郵件已使用"
 
-#: taiga/projects/serializers.py:223
+#: taiga/projects/serializers.py:244
 msgid "Invalid role for the project"
 msgstr "專案無效的角色"
 
-#: taiga/projects/serializers.py:321
+#: taiga/projects/serializers.py:342
 msgid "Total milestones must be major or equal to zero"
 msgstr "Kanban"
 
-#: taiga/projects/serializers.py:378
+#: taiga/projects/serializers.py:399
 msgid "Default options"
 msgstr "預設選項"
 
-#: taiga/projects/serializers.py:379
+#: taiga/projects/serializers.py:400
 msgid "User story's statuses"
 msgstr "使用者故事狀態"
 
-#: taiga/projects/serializers.py:380
+#: taiga/projects/serializers.py:401
 msgid "Points"
 msgstr "點數"
 
-#: taiga/projects/serializers.py:381
+#: taiga/projects/serializers.py:402
 msgid "Task's statuses"
 msgstr "任務狀態"
 
-#: taiga/projects/serializers.py:382
+#: taiga/projects/serializers.py:403
 msgid "Issue's statuses"
 msgstr "問題狀態"
 
-#: taiga/projects/serializers.py:383
+#: taiga/projects/serializers.py:404
 msgid "Issue's types"
 msgstr "問題類型"
 
-#: taiga/projects/serializers.py:384
+#: taiga/projects/serializers.py:405
 msgid "Priorities"
 msgstr "優先性"
 
-#: taiga/projects/serializers.py:385
+#: taiga/projects/serializers.py:406
 msgid "Severities"
 msgstr "嚴重性"
 
-#: taiga/projects/serializers.py:386
+#: taiga/projects/serializers.py:407
 msgid "Roles"
 msgstr "角色"
 
@@ -1657,8 +1606,8 @@ msgstr ""
 "%(extra)s　"
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:19
-msgid "Accept your invitation to Taiga following whis link:"
-msgstr "依下方連結接受Taiga使用邀請　"
+msgid "Accept your invitation to Taiga following this link:"
+msgstr "接受Taiga加入邀請請依下面連結指示"
 
 #: taiga/projects/templates/emails/membership_invitation-body-text.jinja:21
 msgid ""
@@ -1992,12 +1941,12 @@ msgid "Vote"
 msgstr "投票　"
 
 #: taiga/projects/wiki/api.py:60
-msgid "No content parameter"
-msgstr "無內容參數"
+msgid "'content' parameter is mandatory"
+msgstr "'content'參數為必要"
 
 #: taiga/projects/wiki/api.py:63
-msgid "No project_id parameter"
-msgstr "無 project_id 參數"
+msgid "'project_id' parameter is mandatory"
+msgstr "'project_id'參數為必要"
 
 #: taiga/projects/wiki/models.py:36
 msgid "last modifier"
diff --git a/taiga/projects/migrations/0021_auto_20150504_1524.py b/taiga/projects/migrations/0021_auto_20150504_1524.py
new file mode 100644
index 00000000..ec82bfe2
--- /dev/null
+++ b/taiga/projects/migrations/0021_auto_20150504_1524.py
@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('projects', '0020_membership_user_order'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='membership',
+            name='created_at',
+            field=models.DateTimeField(default=django.utils.timezone.now, verbose_name='create at'),
+            preserve_default=True,
+        ),
+        migrations.AlterField(
+            model_name='project',
+            name='videoconferences',
+            field=models.CharField(max_length=250, blank=True, choices=[('appear-in', 'AppearIn'), ('jitsi', 'Jitsi'), ('talky', 'Talky')], null=True, verbose_name='videoconference system'),
+            preserve_default=True,
+        ),
+        migrations.AlterField(
+            model_name='projecttemplate',
+            name='videoconferences',
+            field=models.CharField(max_length=250, blank=True, choices=[('appear-in', 'AppearIn'), ('jitsi', 'Jitsi'), ('talky', 'Talky')], null=True, verbose_name='videoconference system'),
+            preserve_default=True,
+        ),
+    ]
diff --git a/taiga/projects/mixins/ordering.py b/taiga/projects/mixins/ordering.py
index b818a25e..b180bc1f 100644
--- a/taiga/projects/mixins/ordering.py
+++ b/taiga/projects/mixins/ordering.py
@@ -44,11 +44,11 @@ class BulkUpdateOrderMixin:
         bulk_data = request.DATA.get(self.bulk_update_param, None)
 
         if bulk_data is None:
-            raise exc.BadRequest(_("{param} parameter is mandatory".format(param=self.bulk_update_param)))
+            raise exc.BadRequest(_("'{param}' parameter is mandatory".format(param=self.bulk_update_param)))
 
         project_id = request.DATA.get('project', None)
         if project_id is None:
-            raise exc.BadRequest(_("project parameter is mandatory"))
+            raise exc.BadRequest(_("'project' parameter is mandatory"))
 
         project = get_object_or_404(Project, id=project_id)
 
diff --git a/taiga/projects/models.py b/taiga/projects/models.py
index 9551dc33..64fff2a9 100644
--- a/taiga/projects/models.py
+++ b/taiga/projects/models.py
@@ -58,7 +58,7 @@ class Membership(models.Model):
     email = models.EmailField(max_length=255, default=None, null=True, blank=True,
                               verbose_name=_("email"))
     created_at = models.DateTimeField(default=timezone.now,
-                                      verbose_name=_("creado el"))
+                                      verbose_name=_("create at"))
     token = models.CharField(max_length=60, blank=True, null=True, default=None,
                              verbose_name=_("token"))
 
diff --git a/taiga/projects/templates/emails/membership_invitation-body-text.jinja b/taiga/projects/templates/emails/membership_invitation-body-text.jinja
index f8ed38e9..c8fbe7f1 100644
--- a/taiga/projects/templates/emails/membership_invitation-body-text.jinja
+++ b/taiga/projects/templates/emails/membership_invitation-body-text.jinja
@@ -16,7 +16,7 @@ And now a few words from the jolly good fellow or sistren who thought so kindly
 {{ extra }}
     {% endtrans %}
 {% endif %}
-{{ _("Accept your invitation to Taiga following whis link:") }}
+{{ _("Accept your invitation to Taiga following this link:") }}
 {{ resolve_front_url("invitation", membership.token) }}
 {% trans %}
 ---
diff --git a/taiga/projects/wiki/api.py b/taiga/projects/wiki/api.py
index c13fc3d8..a2e39eda 100644
--- a/taiga/projects/wiki/api.py
+++ b/taiga/projects/wiki/api.py
@@ -57,10 +57,10 @@ class WikiViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin,
         project_id = request.DATA.get("project_id", None)
 
         if not content:
-            raise exc.WrongArguments({"content": _("No content parameter")})
+            raise exc.WrongArguments({"content": _("'content' parameter is mandatory")})
 
         if not project_id:
-            raise exc.WrongArguments({"project_id": _("No project_id parameter")})
+            raise exc.WrongArguments({"project_id": _("'project_id' parameter is mandatory")})
 
         project = get_object_or_404(Project, pk=project_id)
 
diff --git a/taiga/users/templates/emails/registered_user-body-html.jinja b/taiga/users/templates/emails/registered_user-body-html.jinja
index efe77ace..19a87e6e 100644
--- a/taiga/users/templates/emails/registered_user-body-html.jinja
+++ b/taiga/users/templates/emails/registered_user-body-html.jinja
@@ -10,8 +10,8 @@
             <p>We built Taiga because we wanted the project management tool that sits open on our computers all day long, to serve as a continued reminder of why we love to collaborate, code and design.</p>
             <p>We built it to be beautiful, elegant, simple to use and fun - without forsaking flexibility and power.</p>
             <small>The taiga Team</small>
-        </td
-        {% endtrans %}>
+        </td>
+        {% endtrans %}
     </tr>
 </table>
 {% endblock %}