add geometry indexes for simplified columns

During the single pass re-organization, the geometry indexes on the new
simplified columns were lost.
Merge pull request #65 from mapzen/restore-geometry-indexes-simplified-cols

add geometry indexes for simplified columns
Remove vtm endpoint

* remove vtm layer
* remove all relevant (layers)+
* remove vtm queries
Merge pull request #66 from mapzen/remove-vtm-endpoint

Remove vtm endpoint
COMMITTED VIA CIRCLECI: tilestache config update
Remove .DS_Store file
Merge branch 'master' into dev

Conflicts:
	data/apply-planet_osm_polygon.sql