update sendmessage ui
update version to 2.1.0
Merge branch 'easemob-dev'
merge to master
remove duplicated premission setting
update ui bug
update audio anim
delete error grouplistview
set use roster option
update chatactivity
Merge branch 'easemob-dev'
update loginactivity
update chatactivity
update demoapplication
update chatactivity
update for group
Merge branch 'easemob-dev'
update demeapplication
temp commit
Merge branch 'master' into zhangwei

Conflicts:
	ChatDemoUI/src/com/easemob/chatuidemo/DemoApplication.java
	ChatDemoUI/src/com/easemob/chatuidemo/activity/GroupDetailsActivity.java