modify 2.0.9
Merge branch 'easemob-dev'

Conflicts:
	ChatDemoUI/AndroidManifest.xml
Merge branch 'easemob-dev'
merge to master
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 ackread
update demeapplication
temp commit
update for search conversation
fix offline click voice msg bug
Merge branch 'master' into easemob-dev