modify listview item data
modify new message icon
add signuplist newmessage icon
display listview scrollbar
search by name when you pull down to refresh
OK
modify data error after searching signup exhibition list
modify unsignuplist listitemDatas
modify the pull up can not loadmore in the search
add a function of scannering qrcode
modify module of scannering qrcode that how to save exkey
scan the qrcode by ourselves class
modify app name
redraw the view of scanning qrcode