Refactored fade in and fade out to view instead of performing it in view model.
Removed a redundant raisepropertychange which appears to be solving the preview disappearing issue.
Merge pull request #760 from SkyApple/PreviewDisappearingFix_ChocoButterUI_BugFix

Fix for node preview disappearing after multiple collapse+expand
Added 2 test cases related to Defects.
Also created batch file to run Defect related test cases.
Added link of defects so that it will be easy to nevigate for detail steps.
Fix for unable to commit changes after library collapse.
Provide SynchronizationContext to GregOxygenProvider for login, fix for #754
Merge branch 'master' of https://github.com/ikeough/Dynamo
Make DotProduct node output a number instead of a container.
Merge branch 'master' of github.com:ikeough/Dynamo
Python script edits marks workspace as edited, python script edits are undoable, with basic unit tests
Increase threshold time for unit test opening a large Excel workbook
Cleanup PythonVarIn, PythonVarIn edit marks workspace as edited, is undoable, with unit tests
Remove old python unit test
Merge branch 'master' of https://github.com/ikeough/Dynamo
Merge pull request #763 from riteshchandawar/master

Added 2 test cases related to defect for Revit geometry.
Merge pull request #766 from SkyApple/FixForUnableToCommitChangesAfterLibCollapse_ChocoButterUI

Fix for unable to commit changes after library collapse.
Merge branch 'master' into ChocoButterUI

Conflicts:
	src/DynamoCoreUITests/RecordedTests.cs
	src/DynamoPython/dynPython.cs