Add game.battle.atbMode.
Add debug::ShowWarning.
Move game menu functions.
Rename game.fps to game.frameRate.
Fix bug in Screen::Draw and Screen::Drawq.
Add keyboard.getState and keyboard.getVirtualKeyCode.
Add mouse.getState.
Rename Sound.repeat to Sound.loop, repeat is a keyword in Lua.
Add Sound.pitch.
Add game.system.graphicFilename.
Make error message more clear.
Add Character:move.