ANDROID: Use System.loadLibrary instead of System.load
GRAPHICS: Remove use of glMapBuffer (extension)
GRAPHICS: Image format must match internalformat for ES2
ANDROID: Remove force_redraw
ANDROID: Move Touch controls to TouchControlsBackend
ANDROID: Move touchcontrols to touch/grimcontrols
BUILD: Define TOUCH_BACKEND for Android
GRIM/EMI: Request touch controls
ANDROID: Toggle run when 20% of height is crossed