Remove 256x256 tile size restriction from proxy provider
Update sandwich provider to use tile_height layer prop instead of hard coded 256 tile size
Add Vector Provider Tests
Merge pull request #100 from bwg/retina

Remove hard-coded 256px tile dimensions from providers
Merge pull request #102 from straup/master

Teach MBTiles.py to serve JSON
Merge pull request #105 from RBURHUM/vector_tests

Add Vector Provider Tests
Bumped to 1.45.0 with changes to S3, Sandwich, MBTiles, Disk and other cache & providers
Fixed alpha-channel issue in Sandwich provider
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