- try to write a test
 - write tests to chat bridge
Merge branch 'html5-convert-message-to-json' of https://github.com/ritzalam/bigbluebutton into html5-bridge-tests

Conflicts:
	bigbluebutton-apps/src/test/java/org/bigbluebutton/conference/service/chat/ChatBridgeTest.java
	bigbluebutton-web/test/unit/org/bigbluebutton/api/messaging/NullMessagingService.java
Adding initial tests for ChatMessage and making it more structured