Replace some DOC_TBA comments with real doc
Replace more DOC_TBA comments
Improve CompositePrimitive doc
Merge branch 'master' into doc-tba
Rename CompositePrimitive to PrimitiveCollection
Added options to PrimitiveCollection constructor
Replace more DOC_TBA comments
Merge branch 'master' into doc-tba

Conflicts:
	CHANGES.md
Merge pull request #1711 from AnalyticalGraphicsInc/doc-tba

Replace DOC_TBA comments