Start of DataSource support for geometry outline width

1. Add `outlineWidth` property to all geometry graphics objects.
2. Update Updaters to expose outline information.
3. Fix issues in DataSource geometry specs.
Added appendForwardSlash
Minor test cleanup
Fix reference doc
Fix typo
Fix off by one error
Remove wrapLongitude from PolylineGeometry and handle it in the geometry pipeline.
Merge remote-tracking branch 'origin/master' into goodness
Merge remote-tracking branch 'origin/master' into goodness
Put back constant
Merge remote-tracking branch 'origin/master' into goodness
Added color to vertex format
Merge master to goodness
Merge branch 'master' into wrapLongitude
Add special case function for splitting wide polylines instead of changing the triangle split code to catch that case.
Fix line color and texture coordinates.
Refactor ScreenSpaceEventHandler and the tests substantially.
Merge remote-tracking branch 'origin/master' into goodness
Fix modelMatrix in Primitive constructor
Merge branch 'primitive-modelmatrix' into goodness