heroku/heroku — pull request #1052 by catsby (2014-03-14 20:54:25+00:00)
Title: Alert users that we're using the API key from the environment

If you have `ENV['HEROKU_API_KEY']` set in your environment, it can be tricky sometimes, so let people know why things may be acting strange by explicitly saying "hey you have this in the env so I'm using it". See #572