Implemented constraints service and moved all contraints releated code there.
Refactored settings to use the new constraints refresh event to inject the constraints controlled by settings.
Bumped api version because of new service.
Added more docs about constraints and fixed the googCpuOveruseDetection to be set on the peer connection.
Cleanup css which is not used and removed unmaintained skins.
Fixed event and scope order/update issues created by rooms service.
Fixed room join when not logged in by fixing authorizing flag (now in appData service).