Remove destructor
Register save workflow event hander for unit test
Not calling Dispatcher.CurrentDispatcher.BeginInvoke() in test mode
Remove event handler in FFIExecutionManager
Unsubscribe WorkspaceSaved event in DynamoViewModel
Merge branch 'master' into fix_memoryleak
Unscribe scheduler's TaskStateChanged after it is shutdown
Move lock to outer scope
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Update ExcelTests
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Merge pull request #2859 from ke-yu/fix_memoryleak

Fix memory leak in nunit (DynamoCoreTest)
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into VMGraphTools