change/list_master — pull request #2 by mdimas (2012-09-25 23:49:53+00:00)
Title: modified the DSL for list_master 

@growlypants @chasestubblefield

modified the DSL for list_master to support :if syntax in all cases (instead of having to use :on for conditionals) and then a separate :single option for specifying when there should only be a single set created and not use the attribute value in the set name