adding state to zoom level 7
adding basic motorway as highway zoomlevel-7 for highroads used for z 7 - 10
adding boundaries as a provider layer that has country/state boundaries (at the risk of throwing 500s from tilestache in case the query returns 0 rows - couldnt test it locally, need the whole planet for this to make sense). And also updating highroads, highroads-2x and places
Merge pull request #6 from hkrishna/adding-boundaries-and-other-updates

Adding boundaries and other updates