DynamoDS/Dynamo — pull request #3093 by Steell (2014-11-14 21:05:11+00:00)
Title: Added LoopWhile node

Ported the Loop While node from it's custom node incarnation on the package manager to a built-in DS-written node.

#### Reviewers:
* [ ] @ikeough
* [ ] @aparajit-pratap