Remove materials that are being moved to a plugin.
Fix test.
CZML loading should suspend events

Loading CZML was previously sending events the moment a DynamicObject was created (even though the object had no actual data in it).  It would also send out one event per object, which affects performance.  This change uses the `DynamicObjectCollection.suspectEvents` functionality to send one update with all data loaded at the end.  I thought this was the behavior already, but it wasn't.

I also fixed #1380 while I was in the code.  This was do to all visualizers not cleaning up properly in their destroy.  It was a one line change for each visualizer.
Update CHANGES.
Update CHANGES.md.
Remove more instances of removed materials.
Update Sandcastle example images.
Simplify test by using spy.
Fix typo.
Merge pull request #1381 from AnalyticalGraphicsInc/czml-suspendEvents

CZML loading should suspend events
Switch srcfiles to srcresources since cesiumJsFiles is not a fileset anymore.
Merge pull request #1384 from AnalyticalGraphicsInc/fix1383

Switch srcfiles to srcresources since cesiumJsFiles is not a fileset any more
Increase epsilon values for failing tests.
More robust computation of tile edge planes.
Temporarily disable horizon culling.

It's not working correctly for the root tiles in Canary.
Fix more camera tests where code was producing NaNs.
Merge branch 'master' into remove-materials
Merge pull request #1382 from AnalyticalGraphicsInc/remove-materials

Remove materials
Fix and re-enable horizon culling.
Clean up plane computation.