buglist #1, Encrypt.encodeIfNeed() delete in SendMsgToSvr() & getInitialMsg()
add receive message --> check pattern match
parsing SMS done
UI update in TabActivity done
Network BroadcastReceiver bug fix in studyroom
update new quiz UI interface done

TODO : image update when notified QUIZ

in StudyRoomActivity
add different image in TabActivity RoomList
update new quiz UI interface done
set actionbar without icon & change icon size