force preview to 256x256 tile dimension
Copied in mostly-working VecTiles code.
Added documentation for VecTiles.
Adapted mostly-working VecTiles server code from HighRoad GeoJSON provider
Removed mapnik requirement from VecTiles geojson module
Moved VecTiles Datasource into new client submodule
Added queries parameter to VecTiles Provider
Documented most of VecTiles
Fixing Travis CI bugs
Merge pull request #108 from bwg/retinapreview

Force modestmaps preview to 256x256 tile dimensions
Added sort_key parameter to VecTiles Datasource
Bumped to 1.46.0 with addition of TileStache.Goodies.VecTiles and Sandwich patch from Lars Ahlzen
Bumped to 1.46.1 with inclusion of TileStache.Goodies.VecTiles
oops
Added required dbinfo parameter to VecTiles.Provider config
Added optional clip and srid parameters to VecTiles.Provider config
Added optional clipped parameter to VecTiles.Datasource to check unique features
Bumped to 1.46.2 with new parameters in TileStache.Goodies.VecTiles
Merge branch 'master' into recent-tiles-nopurge