:toilet: :poop:
Convert urlpatterns to plain lists.
Fixing problem with saving default values on issues.
Merge branch 'fix-problem-with-undefined-fields'
Refactor signals of tasks, userstories and issues modules
:ghost: Fix a strange behavior with get_model in taiga.projects.history.services
Change django.db.models.loading.get_model (deprecated in django 1.7) to django.apps.apps.get_model
Merge pull request #72 from taigaio/refactor/signals

Refactor signals of tasks, userstories and issues modules (and fix bug #1061)
Fix email of changes
Refactor user profile form and fix #1098
Merge pull request #74 from taigaio/refactor/user-profile-form

Refactor user profile form and fix #1098
Remove useless permissions check code from users resource.

The permissions sistem handles well these conditions.
Merge pull request #75 from taigaio/user-resources-dead-code

Remove useless permissions check code from users resource.