Last commit before going to school, human vs ai
1. remove some redundant files in Ui_2DReplay/,and rectify some small bugs
2. rectify the bugs in Ai_Thread ,Ui_Player, eg. gethero dialog bug,sip.wrapperbug.
3. new debug platform-imitate program:Debug_Plt.py
4. not complete now, problems in getting command from players.