What are these changes @@
Merge branch 'master' of https://github.com/nguoihocnghe/MonoGame_WP8_SampleElements

Conflicts:
	SampleElements/Code/Scenes/MainMenu.cs
	SampleElements/SampleElements.cs
Merge branch 'master' of https://github.com/nguoihocnghe/MonoGame_WP8_SampleElements

Conflicts:
	SampleElements/Framework/ParticleSystem/Emitter.cs
Implement GameScene of QTFramework