Fix Primitive picking when appearance is closed and the geometry is on the surface.
Update CHANGES.md.
Move to b27.
Updates based on review.
Merge branch 'master' into geometryPicking

Conflicts:
	CHANGES.md
Update from review.
Merge pull request #1524 from AnalyticalGraphicsInc/geometryPicking

Primitive picking
Merge branch 'master' into extrudedPolygon

Conflicts:
	CHANGES.md