Add texture coord updating/rebuffering, consider animation frame for object size
Fix animation texture coords and LOOP/ONCE playmode frame updates
Update README and add some Animation documentation
Add an animation test
Change Drawable rotation to degrees, not radians
Add a basic sprite test
Add a basic Log class to centralise logging
Prevent shaderless rendering, with a log message. Also set default light depth to 1
Modify the light test to include a shadow casting object
Change over to using Log.X instead of System.out.println