Rename DynamicScene to DataSources

Also renames lots associated objects for 1.0.  Everything is broken, will fix in next commit.
Fix code after DynamicScene rename.
Update CHANGES
Merge remote-tracking branch 'origin/master' into renameDynamicScene
Merge remote-tracking branch 'origin/master' into renameDynamicScene

Conflicts:
	CHANGES.md
Merge remote-tracking branch 'origin/master' into renameDynamicScene

Conflicts:
	CHANGES.md
	Source/DataSources/ReferenceProperty.js
Merge remote-tracking branch 'origin/master' into renameDynamicScene

Conflicts:
	CHANGES.md
Merge remote-tracking branch 'origin/master' into renameDynamicScene
Changes after review.
Use new terms in error message.
whitespace
Use new terms (entity instead of object) in documentation.
Merge pull request #1883 from AnalyticalGraphicsInc/renameDynamicScene

Rename DynamicScene to DataSources