Revert "Fixed bug #726: Now attachments are in new window but inline"

This reverts commit 97fb48328e.

taiga/projects/attachments/api.py

@@ -107,7 +107,7 @@ class RawAttachmentView(generics.RetrieveAPIView):
         name = attachment.name
         response = http.HttpResponse()
         response['X-Accel-Redirect'] = "/{filepath}".format(filepath=name)
-        response['Content-Disposition'] = 'inline;filename={filename}'.format(
+        response['Content-Disposition'] = 'attachment;filename={filename}'.format(
             filename=os.path.basename(name))
 
         return response