New DS curve to Revit curve conversions, enhancements to old conversions
More conversions from Revit to ProtoGeometry curves
Invert pitch and axis direction in order to create Proto helix with opposite winding
Remove Revit document wipe before run is executed to begin experimentation with trace-based element rebinding
Merge branch 'ChocoButter-2Become1' of https://github.com/DynamoDS/Dynamo into ChocoButter-2Become1