Fix MAGN-2523 Revit Elements not cleaned up after initial failure of the element creation node
fixed stackvalues appearing in watch node
added test for watch nodes displaying functions
Fix MAGN-5027 Dynamo doesn't notice changes to levels in Revit
Move one utility function to RevitServices
Removed "NodeViewModel.OldValue" property
Removed "EngineController.GetStringValue", it's not referenced
Update one test case
Excel needs to be visible by default.
Merge remote-tracking branch 'origin/master' into ExcelUpdates
fix for flaky excel tests
Fixed deadlock in Watch3DView.VisualizationManagerRenderComplete
Updated "AutomationSettings" to wait for evaluation timer
Merge pull request #2922 from DynamoDS/ExcelUpdates

Excel needs to be visible by default.
Merge pull request #2861 from Steell/watch-stackvalue-fix

Watch Node no longer displays "StackValue" for functions: MAGN-5033
Fix levels tests.
Fix Revit_Color test...

DSCoreNodes was being duplicated into the nodes folder and causing a
class version error with DSColor. I've removed several copy-locals to
clean the nodes folder.
Merge branch 'master' into magn-5027

Conflicts:
	test/Libraries/Revit/RevitIntegrationTests/ElementBindingTests.cs
Modify test cases after merge
Merge pull request #2936 from aparajit-pratap/coconutBugs

Fix for flaky excel tests