AugmentedDesignLab/botprint2 — pull request #14 by linzhp (2012-07-12 03:36:50+00:00)
Title: Marking wheels location functionality back again

Other changes:
* I figure out how to make EditingHandler not interfere with other handlers, so I am able to enable it at the same time with AddingWheelHandler.
* The 'SketchingHandler' is disabled and the `EditingHandler` is enabled automatically after user finished sketching the chassis.