title: The `heroku' command exists in these Ruby versions:
body: <p>I'm having major issues with the heroku toolbelt.  I'm using the cedar 14 stack and when I am trying to use a ruby version that isn't <code>ruby 2.0.0-dev</code> I get this error.</p>
  
  <pre><code>rbenv: heroku: command not found
  
  The `heroku' command exists in these Ruby versions:
    2.0.0-dev
  </code></pre>
  
  <p>I need heroku to be working with <code>ruby 1.9.3</code> and I don't think cedar 14 supports that version of ruby.  Can someone explain first, why I am only allowed to use heroku with <code>ruby 2.0.0-dev</code> and also how I can install a older stack that supports <code>ruby 1.9.3</code>?</p>