Polylines added
Fixed LineString and MultiLineString parsing
polylines working
Turned other layers on for rendering
renamed width to halfWidth
Cleaning out buildPolyLine

1. Renamed local variables to be more descriptive
2. Renamed width to halfWidth
3. Proper use of right normal and changed indices to follow counter clockwise vertex order
Merge branch 'master' into polyline
Division/Multiplication (Ohh... CPU Clock cycles)

Small change of "/ 2." to "* 0.5"
Merge branch 'master' into polyline
tweak color and width of roads
simplify a calculation in buildPolyLine
Merge branch 'polyline' of https://github.com/tangram-map/tangram-es into polyline
Remove some log messages
Merge pull request #24 from tangrams/polyline

Polyline