first step
dynamic polyline
Add some helper functions for the UVs
fixing uv on polygons
Merge branch 'master' into multiStyles

Conflicts:
	core/src/style/style.cpp
changeing uvs name for texcoord as webgl
Merge branch 'master' of github.com:tangrams/tangram-es into uvs
Fix warnings
fixes
merge
fix merge
Refactor GeometryHandler to reduce code duplication
Merge branch 'uvs' of https://github.com/tangram-map/tangram-es into uvs
Refactor geometryHandler

-The polyline tesselation algorithm was duplicated in several functions, now all polyline building functions call a single generalized building function
-Renamed buildDynamicPolyline and related variables to buildScalablePolyline, to better reflect usage
Rename 'GeometryHandler' to 'Builders'
Remove unused include
Undo using UVs as color; use UVs for road outline
Documentation for Builders
Add newlines
Code style changes, cleaning, and documentation for geom.h and geom.cpp