Use `timezone.now` in `datepublisher_response_processor`. See #542 and #408
correct documentation for FEINCMS_RICHTEXT_INIT_TEMPLATE default.
Merge branch 'master' into next

* master:
  correct documentation for FEINCMS_RICHTEXT_INIT_TEMPLATE default.
  Use `timezone.now` in `datepublisher_response_processor`. See #542 and #408
Move the first class content-types (Application, Raw, Richtext and Mediafile) to feincms.contents and feincms.apps

Rename feincms.applications to feincms.apps
Move generic extensions to feincms.extensions
Fix #556: Remove frontend editing
Remove our home-grown schema checking support, you should really really use a real migration framework instead
Add another import to the old application content models
Fix some imports