Patternslib/Patterns — pull request #120 by wichert (2012-11-02 10:43:56+00:00)
Title: Checkedflag: show checked state for fieldset

In addition to maintaining checked/unchecked on the label this change adds a
similar class to the (topmost) containing fieldset as well.

As a side-effect this change may improve performance of the pattern by
using local events for input elements.