forward/capify-ec2 — pull request #40 by m14t (2013-07-30 18:05:00+00:00)
Title: Add to_s to fix error when using stages.

When attempt to use stages, I was running into the following error:

`capify-ec2.rb:143:in `desired_instances': undefined method `empty?' for
:prod:Symbol (NoMethodError)`

This pull request fixes that.