init:all my acty & layout
fix:1.error loading web page in Main acty
    2. added the selector in item of Main
init 3 acty & fix bug `can not open main acty` in common way
add popupwindow in Group
update,before use gson in User
reconstructe the User
bug fix:can not load more again when loadmore in the end then refresh
fix bug in Allmember
restructe MGroup by gson
chenge the progressbar style in listview
add CommentView,make performance better
add login check;
fix bug, wrong parse for new group api
bug fix :use DataPool in wrong way;
add:JsonResponseHandler -- a usefuly handler of async-httpclient
add:save user info when  login
fix bug:wrong request in Group api 
rename the layout
restructe the JsonResponHandler,JsonUtils
MemberAdapter should be sigle class for more occasion
add:logout,error code list
make: reset the config to make well performance in ImageLoader
add:communication comment &http error code
finish create groupd
add new feature in PullToRefreshListView
add:Activity and it's info
rename some layout file
fix:error params in ActivityAPI
prepare to let vector to update
Merge pull request #4 from Jayin/master

pull to update
opt by Jayin