Do not preload System.Windows.Interactivity
Merge remote-tracking branch 'origin/master' into MAGN-5054
Merge pull request #3091 from DynamoDS/MAGN-5054

MAGN-5054 Nodes appear as empty boxes on loading Dynamo
Revert "Fix MAGN-5376 Element.Geometry not working after reopening file."
Merge pull request #3358 from DynamoDS/revert-3326-magn-5376

Revert "Fix MAGN-5376 Element.Geometry not working after reopening file....
Merge branch 'master' into Revit2015
Merge pull request #3359 from Randy-Ma/Revit2015

Merge the master branch to the Revit2015 branch