Be explicit that this code is an implementation of the Mapbox spec
tests for is_solid + fix mistake in vector tile output 3
disable gcc for now (some obscure namespace conflict)
test for line intersections in isSolid check - refs #41
set painted = true when a raster is added as a layer
v0.5.3
v0.5.4 + line interection test bug fix
Merge branch 'master' of github.com:mapbox/mapnik-vector-tile into raster-clip
remove debug comments