More changes after review.
Add test for computing all attributes when splitting triangles across the IDL.
Merge pull request #890 from AnalyticalGraphicsInc/geojson

GeoJSON support
Merge branch 'master' into dynamicScene-cleanup
Add more tests for splitting lines across the IDL.
Rename file pointInsideTriangle2D.js -> pointInsideTriangle.js
Rename function pointInsideTriangle2D -> pointInsideTriangle
Add tests for barycentric coordinates.
Add bounding sphere for 2D and columbus view.
Add defined
Procedurally generate function to compute position based on columbus view flag.
Fix doc
Don't render if width or height is 0.
Merge remote-tracking branch 'origin/master' into batching
Merge branch 'batching' into batchingdebugcommand
Merge remote-tracking branch 'origin/master' into columbusView
Minor DebugAppearance improvements
Merge branch 'batching' into extrudeExtent
Merge branch 'batching' into extrudePolygon
Remove unused CSS class.