oesmith/morris.js — pull request #139 by tiraeth (2012-12-13 21:36:34+00:00)
Title: Non-invasive solution for #138 covered with mocha:spec

Solution for #138. What's best (and I hope you're happy to see it) I have included a unit test and will try to make it a habit when sending PRs.

**Usage:** Provide ```options.yLabelFormat``` callback accepting ```original label```, ```prefix```, and ```suffix``` and return a formatted label. By default, the body of ```Morris.Grid.yLabelFormat``` is put there.

Cheers!