Shall we still put this in a sub app?
Would still need to figure out how to hook from the sub app into the serializer viewsets (and not vice versa) in order the custom fields get saved.

See #21

Extended Category model with color and description.
Extended Note model with field audio_url, to be able to playback audio files directly in the mobile app.
The field is hidden and will only be used to automatically retrieve the direct file's URL from CBA if the settings variable CBA_API_KEY is set and valid.

See #24

See #23

- Let them only edit their own user profile and only certain fields
- Let them only edit shows they own and only certain fields
- Let them only edit own notes and only assign them to shows and timeslots they own

Removed some unused code and added some help texts to form fields.

* Improved note selection: Users choose their shows and corresponding timeslots are loaded into the select via ajax (improvement still necessary to avoid queryset when initially loading)
See #17

* Users can only see and edit their shows, timeslots and notes
* Users can only edit their own profiles

* Changed fallback_playlist to fallback_playlist_id
* Timelots inherit the is_repetition flag from their schedules when created
* Added field 'memo' to timeslots (for internal notes)
See #21

See #21

* Extended datamodel of user profile by introducing "profile"-subapp
* Implemented thumbnail generation for shows, notes and user profile using django-versatileimagefield (see requirements.txt)

See #21

See #21

See #8 #20

* Fixed some minor bugs
* Added JSON view for loading a timeslot into the calendar
See #8

See #8

Hotfix: datetime.now as callable for query sets to fix implicit 'caching' problem after switching to uwsgi

added save_as to NoteAdmin and limited time slot to the last four weeks. made renew action inside a method

made most of the fields of  of timeslots and programmslots read-only.