First cut at DynamicScene/CZML WallGeometry support.
Merge branch 'master' into dynamicScene-wall-geometry
getIntervals should be intervals.
Merge branch 'master' into dynamicPath-crash
Merge remote-tracking branch 'origin/master' into dynamicScene-wall-geometry
Add Navigation Help widget.
Fix incorrect example and destroy method.
Tweak instruction text.
Make help window slightly smaller.
Changes from review.
Fix copy/paste error.
Merge remote-tracking branch 'origin/master' into dynamicScene-wall-geometry
DynamicRectangle specs and cleanup.
Update CHANGES.
Merge branch 'dynamicScene-rectangle' into kml
Merge remote-tracking branch 'origin/master' into dynamicScene-wall-geometry
Merge branch 'dynamicScene-rectangle' into dynamicScene-wall-geometry

Conflicts:
	Source/DynamicScene/CzmlDataSource.js
	Source/DynamicScene/DataSourceDisplay.js
Merge branch 'master' into dynamicPath-crash
Fix path visualization when using composite properties.
Specs and cleanup for DynamicWall.