correiged a fatal bug (divede by 0)=nan
	modified:   src/portable/scene/Level1/L1GameLayer.cpp
	modified:   src/portable/scene/Level1/L1GameLayer.h
	modified:   .gitignore
	ignore the build resut of android project
Merge branch 'git-config' into Level1
Ignore the build result of android
	modified:   src/portable/scene/Level1/L1b2Sprite.h