upgrade to node-mapnik@1.3.x
Merge branch 'master' of github.com:mapbox/tm2 into node-mapnik-1.3
use node-mapnik@1.3.0-alpha4
use node-mapnik@1.3.0
use tilelive-vector/bridge from master
Merge pull request #115 from mapbox/node-mapnik-1.3

upgrade to node-mapnik@1.3.x