mapnik3
c++11 support
fix test
just test on node v0.10 for now
bundle dejavu fonts for back compat - closes #2272
latest node-mapnik/tilelive-mapnik
upgrade deps: mbtiles/mapnik/millstone/sqlite3/npm/semver
appveyor + travis updates
attempt to fix contexify source compile
try to workaround python ssl bug preventing blocking topcube download
exceptions for cefclient libs
ignore contextify.node for now
appveyor: try node v0.11.x
v0.11.x is nogo due to pinned jsdom dep - refs #2401 and mapbox/tilestream#108
drop contexify dep
Merge pull request #2442 from mapbox/mapnik3

Mapnik 3.x
latest node-mapnik and tilelive-mapnik