added a proper title to the client html
added the proper mconf logo on the presentation playback page
Merge branch 'mconf-branding' into mconf-live0.3.3

Conflicts:
	record-and-playback/presentation/playback/presentation/playback.html
updating rap to bigbluebutton/bigbluebutton@e6a93de05521e2f4acc6c23312713620962a6b0f
it fixes the feature to specify the start time of the recording playback