cxxclean

Some configuration in my CMakeLists.txt is below: ``` add_library(server "server/stdafx.h" ${server_sourcelist} "protocol/c++/msg-server_to_server.pb.cc") add_executable(gameserver ${gameserver_sourcelist} "protocol/c++/data-db.pb.cc" "protocol/c++/data-notdb.pb.cc" "protocol/c++/msg-game_to_client.pb.cc" "protocol/c++/msg-game_to_db.pb.cc" "protocol/c++/msg-game_to_gate.pb.cc") add_executable(gateserver ${gateserver_sourcelist} "protocol/c++/data-db.pb.cc" "protocol/c++/msg-game_to_client.pb.cc" "protocol/c++/msg-game_to_gate.pb.cc") add_executable(dbserver ${dbserver_sourcelist} "protocol/c++/data-db.pb.cc" "protocol/c++/msg-game_to_client.pb.cc" "protocol/c++/msg-game_to_db.pb.cc") add_executable(robot...