prohibit freechoose selecting lord and jiange generals
Qt_Version
调整ai
ai
。。
connect(step 1)

Conflicts:
	src/client/client.cpp
	src/client/client.h
	src/ui/roomscene.cpp
connect(step 2)

Conflicts:
	src/dialog/mainwindow.cpp
	src/dialog/serverdialog.cpp
	src/server/room.cpp
	src/server/server.cpp
	src/server/serverplayer.cpp
	src/ui/button.cpp
connect(step 3)
connect(step 4)

seems I did something wrong..........now can't connect to server

Conflicts:
	src/ui/startscene.cpp
	src/util/nativesocket.cpp
Fix the disconnection in step 4

Conflicts:
	src/server/server.cpp
copy from Takashiro
Apply new signal-slot connections of Qt 5 (step 5)