Refactoring: change factory methods in AstBuilder to static
Implement Concats node
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Add an Execute() to AstBuilder to run AST nodes
Generating AST for more nodes
Merge pull request #426 from ke-yu/master

Code refactoring for AstBuilder and generating AST for more nodes
updated descriptions
Revit testing script calls sys.exit.
Merge branch 'master' of github.com:ikeough/Dynamo
geometry association removed when dynamo closes

fix for #427
closing the window with the X button still cleans
cancel button on save prompt now cancels close
better name for recursive output
moved custom node tests to their own file
Enable sandbox build in Debug and Release configurations and set to AnyCPU.
Merge branch 'master' of github.com:ikeough/Dynamo
Add more data to the nunit results.
Add more attributes to results files.
Save the revit test results to the workspace root.