Improved per-instance color appearance
Cleaned up per-instance flat color
Merge flat color and color appearances
Added flat shading option
Appearance cleanup
Added SimplePolylineGeometry.js
Added ExtentPrimitive
Changed Polygon to use PolygonGeometry.  This breaks some tests until PolygonGeometry is fixed.
Added faceForward
Fix crash when morphing from 2D to 3D.
Modify polygon geometry to use typed array for its indices.
Updates based on review.
Merge pull request #889 from AnalyticalGraphicsInc/issue884

Fix Issue 884
Fix a few Polygon tests
Fix clone crash
Added Extent.fromDegrees
Fixes #864
Merge pull request #891 from hpinkos/cloneUndefined

Fixes #864
Minor doc fixes
Merge master to batching