close fireball-x/dev#402: add Fire.Input.hasTouch
close fireball-x/dev#402: add Fire.Input.hasTouch

knoxHuang/engine,cocos-creator/deprecated_engine,knoxHuang/engine,fireball-x/deprecated_engine,fireball-x/deprecated_engine,cocos-creator/deprecated_engine,knoxHuang/engine,fireball-x/deprecated_engine,cocos-creator/deprecated_engine