Merge pull request #743 from ritzalam/merge-leonardo-api-changes

...rc/main/scala/org/bigbluebutton/core/CollectorActor.scala

bigbluebutton-html5/app/.meteor/packages

bigbluebutton-html5/app/.meteor/versions

bigbluebutton-html5/app/client/main.html

bigbluebutton-html5/app/client/stylesheets/style.less

...rs/org/bigbluebutton/web/controllers/ApiController.groovy

...on-web/src/java/org/bigbluebutton/api/MeetingService.java

...-web/src/java/org/bigbluebutton/api/RecordingService.java

...on-web/src/java/org/bigbluebutton/api/domain/Meeting.java

...utton-web/src/java/org/bigbluebutton/api/domain/User.java

...rg/bigbluebutton/api/messaging/MeetingMessageHandler.java

...a/org/bigbluebutton/api/messaging/MessagingConstants.java

...bigbluebutton/api/messaging/messages/UserJoinedVoice.java

...g/bigbluebutton/api/messaging/messages/UserLeftVoice.java

...gbluebutton/api/messaging/messages/UserListeningOnly.java

...igbluebutton/api/messaging/messages/UserSharedWebcam.java

...bluebutton/api/messaging/messages/UserUnsharedWebcam.java