Implement shutdown idle promise stack. #MAGN-223.
Renable visualization update when full screen watched turned on.
Convert to using visualizers. First pass.
Cleanup of isDrawable
Get rid of DrawableNode.
Convert revit to use visualizers.
Get rid of geometry collections.
Cleanup visualize thread. Avoid re-iteration.
Curve loops drawing again.
Merge branch 'master' of github.com:ikeough/Dynamo
Visualization manager tests running clean again.