start making lights configurable
Merge branch 'master' into light-config
utility for (linearly) interpolating a value between control points
update lights & do GL setup
camera: use pixels for relative values, simplify on [x,y] arrays only, use interpoliation util func
lights: add initial config params for point light
demo: update scene def for new camera & light params
update build
parse floats
light: don't let directional light factor be negative
light: add parameters for directional light
switch back default demo light
Merge branch 'master' into light-config
lighting: add initial spotlight implementation
Merge branch 'master' into light-config
remove unused shader code
Merge pull request #66 from tangrams/light-config

Configurable lighting