Simplify geometries before cutting out tiles.
Simplify geometries before cutting out tiles.

tilequeue/transform.py
	-Mirror the work done in the `remove-tile-seams` branch of
	mapzen/tilestache (https://github.com/mapzen/tilestache/tree/remove-tile-seams):
	simplify geometries before cutting out a tile from them to
	prevent seams on tile borders from forming.

tilezen/tilequeue,mapzen/tilequeue