Timing information in ACs.
compile WIP
Avoid null reference exception.
AC batch creation node.
Make vasari geometry preview off by default.
Add some timer info to batch ACs.
Clear preview value when the CBN is empty
Update DesignScript dlls.
Add regress test case for MAGN-722
Semi colon addition fix
Merge pull request #752 from ke-yu/ChocoButter

Clear preview value when the CBN is empty
Merge pull request #753 from ambarish-prakash/Builddefectfix

Semi colon addition fix
MAGN-721 Fixes for state machine to pause and unpause correctly for visualization manager.
Extended Divided Surface to get divisions, set rotation, added properties and extended unit test
More tests for DSDividedSurface
working on custom ast production framework
Introduce BySelection constructors for existing objects and IsRevitOwned field on AbstractElement
Wrap invalid cast and null reference exceptions in more user-friendly message.
custom node ast compilation and instancing
Merge branch 'ChocoButterCompile' into ChocoButter

Conflicts:
	src/DynamoCore/Nodes/CodeBlockNode.cs
	src/DynamoCore/Nodes/dynFunction.cs