First sketch of rendering webp raster tiles.
Blank mode raster.
Merge branch 'master' into raster
Add rgba pixel comparison test using mapnik view/getPixel.
use mapnik.Image.compare / node-mapnik@1.4.7
Use 512 tiles.
Merge pull request #17 from mapbox/raster

Basic raster support
0.5.0
Hi mr.veyor
Remove deflate option
md5 the buffer, not the key and update the comment with more details.
Be node v0.10.x only.
Merge pull request #22 from mapbox/node-v010-only

Be node v0.10.x only
Merge branch 'master' into content-encoding
Use gzip to compress protobuf output.
Merge pull request #21 from mapbox/content-encoding

Remove deflate option, switch to gzip
0.6.0
Merge branch 'master' into low-tolerance

Conflicts:
	index.js
Fix order of ops when updating fixtures.
Merge branch 'master' into low-tolerance