bump mapnik version to v1.2.x
bump to v0.0.3 and add CHANGELOG
more rich test comparisons to help figure out failures
fix tests and test with protobuf 2.5 PPA
fix failing tests with more recent mapnik/node-mapnik - closes #5
bump to v0.0.4 with fix for buffers on tiles that regressed in v0.0.3
Do not overwrite map.bufferSize.