Cleanup Polyline example
Merge trs to pointgeometry
Added primitive bounding sphere debug
Added debug for axes
Initial point geometry
Merge master to pointgeometry
Merge trs to pointgeometry
Added allowPicking to primitive
Added PointColorAppearance for per-color points
PointColorAppearance tweaks
Merge remote-tracking branch 'origin/trs' into pointgeometry
Add `equals` function to `Property` interface and implement it in all properties.

Still need to write specs.
Add a few specs.
Merge remote-tracking branch 'origin/trs' into pointgeometry
Add specs for remaining Property.equals implementations.

Also fix a few issues which the specs uncovered.
Merge remote-tracking branch 'origin/master' into property-equals
Merge branch 'trs' into pointgeometry
Merge branch 'master' into property-equals
Merge branch 'master' into property-equals
Add PolylineOutlineMaterialProperty.equals.