Start adding docs for how to test your extensions
Add docs for testing CMS plugins
Merge pull request #1808 from FinalAngel/develop

Frontend Fixes
use django override_settings decorator in cms app test examples
undo/redo working with adding and removing plugins
Add mention of CMSTestCase
Use links to django docs

as suggested by @piquadrat
test docs again
Add link to reverse() function

from testing docs
fixed tests
Merge pull request #1807 from foobacca/testing_docs

Testing docs
Merge branch 'support/2.4.x' into develop
add preventSwitch option
Merge branch 'develop' of github.com:divio/django-cms into develop