title: How to apply refinements / monkey-patches globally via environment.rb?
body: <p>Lets take the example from the <a href="https://github.com/sickill/rainbow" rel="nofollow noreferrer">Rainbow gem</a>:</p>
  <p><code>using Rainbow</code> allows to color string objects directly like so <code>'Hi'.green</code>.</p>
  <p>However, when I tried to add <code>using Rainbow</code> to <code>environment.rb</code> in the hopes of being able to access the monkey-patched coloring methods in any file the <code>environment.rb</code> is required in, seems like the coloring methods are not available.</p>
  <p>Is there a way to apply the monkey-patch globally once instead of doing <code>using Rainbow</code> in each file separately?</p>