Disable polygon clipping for buildings. Buildings tend to be smaller than tiles
Merge pull request #51 from pnorman/building_clip

Disable polygon clipping for buildings
Replace existing tile.openstreetmap.org coastline files with openstreetmapdata.com files

Closes gravitystorm/openstreetmap-carto#39

Also index the shapefiles for performance as the new ones don't come pre-indexed