send image done
in Studyroom, you can invite more friends
if bufferedWriter is null, create
gcm message get ... but need to fix more
gcm message get ... image, I want to change dialog to only notification bar
make kick off interface
get keyboard height done && volley get request queu bug fixed
add additional page in study room
in StudyRoomActivity, make interface to send myAccomplishedTime
mark isMaster in StudyRoomActivity
friend_list_item.xml refactor
kickOffMemeber in Studyroom done -> TODO : view refresh
out room from itemLongClick in TabActivity