Document $.fn.labels

[arschmitz]

We need to add an entry for the new method $.fn.labels which attempts to mimic the control.labels property from webkit browsers and extends it to work on document fragments as well. This method of course only works on a single element and like other jQuery methods will use the first element in a collection if a collection is passed. It returns a jQuery Collection of all of the labels present which are associated with the input, or an empty collection if there are none.

[jzaefferer]

Landed in 1-12 branch.