Merge branch 'dev/dj-scheduled-task'

* dev/dj-scheduled-task:
  Documentation for running autosync tasks
  Fix for application context required
  Moving celery configuration to flask configuration
  Added configuration for celery beat
  Adding the documentation how applying tasks to a named queue
Merge branch 'master' of github.com:SlideAtlas/SlideAtlas-Server
Fix documentation generation after refactor
Merge branch 'fix/doc-after-refactor'

* fix/doc-after-refactor:
  Fix documentation generation after refactor
Merge branch 'master' of github.com:SlideAtlas/SlideAtlas-Server