docpad/docpad-plugin-sass — pull request #26 by andruhon (2013-12-02 20:58:03+00:00)
Title: scssPath & sassPath opts now could be arrays

If you want to use bundler you can set something like this in docpad.coffee:
plugins:
sass:
scssPath: ['bundle','exec','scss']
sassPath: ['bundle','exec','sass']