Fix failed unit test case: VisualizationInSyncWithPreviewUpstream
Separating out FScheme and DSEngine test cases to get the clear results
fixed bad equals comaprison
Merge branch 'master' of https://github.com/ikeough/Dynamo
Merge pull request #892 from Benglin/master

Fix unit test case: VisualizationInSyncWithPreviewUpstream
Merge pull request #893 from riteshchandawar/master

Separating out FScheme and DSEngine test cases to get the clear results
Merge branch 'master' into ChocoButter

Conflicts:
	src/DynamoCore/Models/NodeModel.cs
	src/DynamoCoreUITests/RecordedTests.cs