joomla/joomla-cms — pull request #1993 by nikosdion (2013-09-16 10:39:57+00:00)
Title: Feature: Two Factor Authentication - YubiKey implementation

See Joomla! feature tracker item [32026](http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=32026)