wzg fixed 7629 7881

Conflicts:

	source/libs/armeabi/libv2client.so
	source/libs/libv2client.so
	source/src/com/v2tech/service/ChatService.java
	source/src/com/v2tech/service/CrowdGroupService.java
	source/src/com/v2tech/view/conference/VideoAttendeeListLayout.java