sosedoff/capistrano-unicorn — pull request #13 by drywheattoast (2012-03-19 13:39:52+00:00)
Title: Adds process check for :reload task

When performing an upgrade, it does not suffice to simply check for the unicorn PID file.
We also need to check for process existence because sometimes unicorn can die and leave behind
a stale PID file. In this case, we should issue a 'start' cmd.