raster-fade -> raster-fade-duration
Render background with plain shader
background-opacity support
Avoid zero size array warning
Use fresh map and view for each test
Make Glyph and Sprite Atlases noncopyable
Record frame history in the correct place

Fixes numerous issues with rendering tests.
Fix default text-size
Remove vtxMatrix state
Simplify
Implement {text,icon}-translate[-anchor]
Fix text-line-height
Fix text-justify (fixes #444)
Merge branch 'master' into libuv010
use std::fopen/std::fread instead of libuv, thanks @springmeyer