Merge master to refdoc-2
Merge branch 'refdoc-2' into refdoc-3
Merge branch 'refdoc-3' into refdoc-4
Add material support for DynamicPath

Replaced `color`, `outlineColor`, and `outlineWidth` in `DynamicPath` with a `material` property.
This allows data sources to use materials other than PolylineOutline for paths.  CZML is not impacted by this change and doesn't have this ability yet, that will be addressed in a future pull.
Merge remote-tracking branch 'origin/master' into polylineGlow

Conflicts:
	CHANGES.md
Cleanup after merge.
Changes after review.
Merge pull request #1782 from AnalyticalGraphicsInc/refdoc-2

Minor reference doc cleanup
Merge pull request #1787 from AnalyticalGraphicsInc/refdoc-3

Use multiple example tags in reference doc
Merge pull request #1792 from AnalyticalGraphicsInc/refdoc-4

Primitive reference doc improvements
Changes after review.
Merge remote-tracking branch 'origin/master' into polylineGlow

Conflicts:
	CHANGES.md
Clean up doc.
Merge pull request #1500 from AnalyticalGraphicsInc/polylineGlow

Add PolylineGlowMaterialProperty
Merge remote-tracking branch 'origin/master' into referenceProperties
Merge remote-tracking branch 'origin/master' into dynamicPath-material
More cleanup after review.
Improve error message.
Added a test for custom materials.
Merge pull request #1794 from AnalyticalGraphicsInc/dynamicPath-material

Add material support for DynamicPath