Updated XCRI tests with a second provider, test the venue identifier for presentations.
XCRI importer / get the OxPoints ID for every presentation (as per TRELLO#24).
XCRI parser: fixed bug where some properties were not handled due to the venue/provider structure...
Merge branch 'master' of github.com:ox-it/moxie-courses

* 'master' of github.com:ox-it/moxie-courses:
  Booking status and using the HAL helpers
  Set the course id and presentation id correctly. Read booking status.
  Cleaned up the views, updated HALCoursesRepresentation.
  Added booking status to the domain
  Added HALPresentationRepresentation with booking link.
Added location information for presentations.