Boone Gorges aa38888d60 Add current-cat-ancestor class to ancestor items in wp_list_categories().
Pairs nicely with `current-cat-parent`.

Props jrchamp, swisssipdy, ardathksheyna, wonderboymusic.
Fixes #10676.

git-svn-id: https://develop.svn.wordpress.org/trunk@36008 602fd350-edb4-49c9-b593-d223f7449a82
2015-12-18 18:37:41 +00:00
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