Updating .gitignore again so ignore .so folders and libpng contents other than Android.mk and the libpng_readme.txt
Updating .gitignore again so ignore .so folders and libpng contents other than Android.mk and the libpng_readme.txt

GowenGameDevOpenSource/tappy-plane,GowenGameDevOpenSource/tappy-plane,GowenGameDevOpenSource/tappy-plane,GowenGameDevOpenSource/tappy-plane