Further implementation of the ticking-specific signups API.
Also added a "test" for the demo.
Merge branch 'master' of github.com:ucam-cl-dtg/urop-2014-ticking-ui

Conflicts:
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/api/GroupApiFacade.class
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/api/GroupingApiFacade.class
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/api/SubmissionApiFacade.class
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/api/TickApiFacade.class
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/api/UserApiFacade.class
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/api/public_interfaces/IGroupApiFacade.class
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/api/public_interfaces/ITickApiFacade.class
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/dao/MongoDataManager.class
	ETick/WebContent/WEB-INF/classes/uk/ac/cam/cl/ticking/ui/ticks/Tick.class