removed useless call to fract
slight optimization.  removed 2 extra texture reads
misc. tweaks
0.2.1
0.2.2
adding miscellaneous tweaks
0.2.3
built with wrong version
Update api docs
Merge pull request #1 from shama/docs

Update api docs
Add tileCount uniform
Add tileCount uniform to fragment shader
Merge pull request #4 from deathcap/tilecount

Add tileCount uniform
changed blending function
adding ambient occlusion shader
0.3.0, more uniforms increase version