Add sample humanstxt plugin.

That plugin shows an simple example how add additional
urlmappings and additional templates to the project.

app/plugins/humanstxt/humanstxt.coffee

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+###
+# Copyright (C) 2014 Andrey Antukh <niwi@niwi.be>
+# Copyright (C) 2014 Jesús Espino Garcia <jespinog@gmail.com>
+# Copyright (C) 2014 David Barragán Merino <bameda@dbarragan.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# File: plugins/humanstxt/humanstxt.coffee
+###
+
+# Simple plugin example that extends the urlmappings
+# and add additional template.
+
+taiga = @.taiga
+module = angular.module("taigaPlugins")
+
+configure = ($routeProvider) ->
+    $routeProvider.when("/humans.txt", {"templateUrl": "/plugins/humanstxt/templates/humanstxt.html"})
+
+module.config(["$routeProvider", configure])

app/plugins/humanstxt/templates/humanstxt.html

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+<h2>Team</h2>
+
+<ul>
+    <li>Andrey Antukh «niwi@niwi.be»</li>
+    <li>Jesus Espino Garcia «jespinog@gmail.com»</li>
+    <li>David Barragán Merino «bameda@dbarragan.com»</li>
+    <li>Xavi Julian «xavier.julian@kaleidos.net»</li>
+    <li>Alejandro Alonso «alejandro.alonso@kaleidos.net»</li>
+</ul>
+