NEON: Create specialized class vec2f and vec3f with NEON optims
NEON: more optims
GLES: Downscale pictures to 16bits
PANDORA: Less detailed fog for Pandora
PANDORA: Joystick support and more pandora keymap tweaking
NEON: a few more optims
PANDORA: Some comments, and a disabled force FPS option
PANDORA: Some more tweaking in default config
NEON: More optims on GLES rederer