FortAwesome/font-awesome-sass — pull request #33 by eronisko (2014-05-21 23:34:41+00:00)
Title: The 'text' argument for 'icon' helper method made optional

HTML options can now be specified without passing an empty argument.

Documentation may also need updating (https://github.com/FortAwesome/font-awesome-sass#rails-helper-usage).