rename LoadingScreen.java to LoadingScreenActivity.java
Separate socket message into a class(weiyuan.socket.GetCmd)and call it
in a new thread, then after received bytes, call back main thread.

Successful
improved getConfiguration by having sum check
branch commit test
thread.sleep(0,1000);
download function ok
connection object (for background listening)updated
panalInfo activity updated to fetch data via Connection