rlivsey/mm-sluggable — pull request #4 by shaine (2013-02-03 22:07:01+00:00)
Title: Added blacklist

Added a :blacklist argument that accepts a list of terms sluggable should consider already used slugs. Eg., if "foo" is added to the blacklist and the field tries to slug to "foo", it will return "foo-1".

Couldn't figure out how to update the tests (sorry), but it looks like pull requests aren't being accepted anymore anyway.