title: I'm getting an error using Figaro gem in Rails
body: <p>The error messages references a line in the gem, but I'm suspecting my trouble lay in my <code>.yml</code> file, which is here (with phony ids)</p>
  
  <pre><code>S3_KEY:ANGELINAANGELINA 
  
  S3_SECRET:becaUSEILIKEherthatiswhy
  
  S3_BUCKET:nameofmybucket
  </code></pre>
  
  <p>/home/tom/.rvm/gems/ruby-2.1.0/gems/figaro-0.7.0/lib/figaro.rb:39:in <code>flatten': undefined method</code>reject' for # (<code>NoMethodError</code>)</p>