Config updates; NOW RUNS ON ANDROID (OpenGL2)

- Switched game name from "My LibGDX Game" to "Plequarius:Galactic
Commanders"
- Added GJLib as a library for Android project (referenced from main
project)
- Switched to OpenGL 2.0 in the Android project - this removes the
"powers of two" image requirements of OpenGL 1.0
Updated gitignore to exclude PGCGame-android/bin