added specular term
fixed hex to rgb conversion in gui
fixed hex to rgb conversion in gui
Merge pull request #3 from meetar/hexfix

Hexfix
fix leaky GL context in 'gl' var
add a reference to parent class on custom render modes, for use in overloaded geometry builders
also do post-processing for styles provided as direct objects
don't re-creat style helpers object for each feature
add test example (commented out) of overloading a geometry builder in the stylesheet
update build
added rainbow cycling shader
made spec its own light
syncing with master
syncing with master
sync with master
cleanup
add map panning state and standard names
Merge branch 'rainbow-tex' of https://github.com/meetar/tangram into meetar-rainbow-tex
hsv2rgb2 -> hsv2rgb
reset default building rendering mode