DynamoController.Testing property is made static
Merge pull request #1176 from Benglin/master

DynamoController.Testing property is made static
Merge branch 'master' into ChocoButter-2Become1

Conflicts:
	src/DynamoCore/Core/DynamoController.cs
	src/DynamoCore/Models/NodeModel.cs
	src/DynamoCoreUITests/UpdateManagerUITests.cs
	src/DynamoElementsTests/DynamoUnitTest.cs
	src/DynamoRevit/DynamoController_Revit.cs
	src/DynamoRevitTests/DynamoRevitTests.cs
	src/DynamoTestFramework/DynamoTestFramework.cs
Merge branch 'master' into ChocoButter-2Become1