Now the resources can indicate their current waitinglist preference in the activity edit dialog (ok, for now it is always false).
Now the UI setting for waitinglist ist stored in the resource.
Adjusted links to the Agora github repository.
Activity now shows waitinglist when it is full. Member can subscribe to waitinglist. (Currently only for owners b/c rights management still needs to be adjusted)
Merge commit 'af3a05d27b077bb264e209363bd4c790d95fe55e'

Conflicts:
	lib/waitinglist/index.js
Adapted form url to change of url in waitinglist index
Doesn't make sense to reuse /waitinglist/add - we need to create our own activity url for adding to the waitinglist.
Added our own url in activities for adding to waitinglist. Now it becomes clear that the waitinglist feature is only half-done... (we need to indicate status and possibly allow removal).
Merge pull request #523 from NicoleRauch/master

Aktivität kann jetzt eine Warteliste bekommen - Interessierte können sich selbst dort eintragen.