Merge pull request #2 from chukong/develop

Merge branch 'develop' of https://github.com/chukong/quick-cocos2d-x into develop
Win32 message loop optimization

Let the thread sleep at each frame's idle time. It can save a lot of CPU cost when the application is minimized or running a simple scene.
Merge pull request #316 from lixianlin/win32_message_loop_optimization

Win32 message loop optimization