#446 hold surface view add surfaceview factory
#446 holding surface view change in CallFragment. works for local but not remote
#446 make call button visible
#447 assets for media control view
#447 more assets for media control view
#447 basic media control now ready
#447 new assets for call/media control
#447 add call activity
#447 fix getCallee() bug in jni
#447 fix bug incoming message sender_id isn't set properly
#447 remove call from contact item
#447 remove avatar from chat view
#447 hide unsupported icons
#449 add call info view
#447 fix incoming caller name display
#450 add ringtone settings
land on favorites for empty chats button
#455 fix login manager calling setWebviewclient
#455 remove hard coded string of content providers
#455 remove more hard coded strings