Folded "LibraryServices.ResolveLibraryPath" method into "Dynamo.Nodes.Utilities"
Merge branch 'ChocoButter-2Become1' into MAGN-981
Break "GetXml" into "SaveInternal" and "PopulateXmlDocument"
Added Get/SetDocumentXmlPath utility methods and their test cases
Implemented "Utilities.MakeRelativePath" method and added its test cases
Updated "DSFunction.SaveNode" to save relative assembly path
Implemented "Utilities.MakeAbsolutePath" and added its test cases
Made "DSVarArgFunction" save/load in relative/absolute paths
Added new test case MakeAbsolutePath03
Fixed copy-and-paste issues caught by unit test cases
Merge branch 'ChocoButter-2Become1' into MAGN-981
Merge pull request #1302 from Benglin/MAGN-981

Fix a showstopper where DSFunction writes out absolute path