Rewrote services to use new message system
Refactored deskshare messaging system to use newer messaging system
fixed style issues, added listenOnly and recording to the model
removed unnecessary signals
fixed mute button bug
Merge pull request #29 from SenecaCDOT-BigBlueButton/changing-services-to-work-with-bbb-version-0.9

Rewrote services to use new message system