Tweak CHANGES.md
Reorg b21 in CHANGES.md
Make name a string instead of a property.  It can still change, but it is not time-dynamic.
Merge branch 'dynamicObject-name' into kml
Fix after merge.
Add support for the EXT_frag_depth extension.
Update CHANGES.md.
Add initial parent object support to DynamicObject.
Merge pull request #1191 from AnalyticalGraphicsInc/EXT_frag_depth

EXT_frag_depth
Add support for KML folders.
Use `childNodes` instead of `children` because it is cross-browser.
Fix style map processing.
Don't use `ReferenceProperty` for parent because it overly complicates things and provides no real benefit.
Improve parent handling.
Manually merge some changes from DataSourceBrowser branch.
Merge branch 'dynamicObject-name' into dynamicObject-parent

Conflicts:
	CHANGES.md
	Source/DynamicScene/CzmlDataSource.js
	Source/DynamicScene/DynamicObject.js
Merge branch 'dynamicObject-parent' into kml
Merge branch 'master' into dynamicObject-name

Conflicts:
	CHANGES.md
Add back optional name property.
Merge branch 'master' into dynamicObject-name