sosedoff/capistrano-unicorn — pull request #68 by gekola (2013-08-16 16:48:14+00:00)
Title: Fetch unicorn roles on task execution, not declaration

As for now if one sets `:unicorn_roles` after `require 'capistrano-unicorn'` it has no effect (`:app` is used instead of set role). This little patch fixes the issue.