Disable "copy local" in project settings
Add a recorded test case for dummy node deletion
Based visibility of "Use Default Value" item on "DefaultValueEnabled"
Remove %dotarg() function
Remove %dotarg() completely
Merge pull request #1517 from ellensi/master

Updates
Merge pull request #1519 from Benglin/MAGN-643

Hide "Use Default Value" menu from output port
Merge pull request #1516 from junmendoza/newMaster

Implement heap cycle checker
Add exception reporting for serialising the string property of reference point

This is a work around to assist in debugging, not a long term solution
New version of LibG, ProtoGeometry, ProtoInterface
Extract end tangents from HermiteFace and use that to perform NurbsSurface fitting
fixes for curtain system
fixes for curtain system 2
Wrap grid curve property call in transaction.
Fix merge conflicts with new version of ProtoGeometry dll's
Trim bound Revit curve when converting to ProtoGeometry curve
Ensure we're in a transaction when getting the FamilyInstance location.
Add in basic support for multiple element handling

Currently untested
Merge branch 'master' of https://github.com/DynamoDS/Dynamo
Addition of the Cache + registration of methods to add and delete elements in cache