Convert to using visualizers. First pass.
Cleanup of isDrawable
Get rid of DrawableNode.
vector node description updates
Convert revit to use visualizers.
Moved sample-specific definition to sample directory
Merge branch 'master' of https://github.com/ikeough/Dynamo
fixed random node not re-using value
added random list node
random node renaming
clicking run now unfocuses input nodes
Get rid of geometry collections.
Cleanup visualize thread. Avoid re-iteration.
Curve loops drawing again.
fixed broken python evaluation in revit
port correction for recursive custom nodes
better tooltip for Fold
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' into DragCanvasRework
Merge branch 'master' into CommandFramework

Conflicts:
	src/DynamoCore/Models/DynamoModel.cs