Use ShoebotError in transforms.py, not NodeBoxError
Merge branch 'master' of git://gitorious.org/shoebot/shoebot
Merge branch 'master' of git://gitorious.org/shoebot/shoebot
Add shoebot extension to doc conf
Merge branch 'master' of https://github.com/shoebot/shoebot
Fix ref to varwindow