title: rails: specify list of items in yml
body: <p>I want to specify resource authorisation info in yml file. admin can create an employee and can only view company.   </p>
  
  <p>I used YAML::load method to load this file. </p>
  
  <p>If i use - symbol for multiple permission (action, resource pair) it gives parsing error. If i remove - symbol then it only picks first action resource pair. I think load method expect 1 space indentation while parsing and if i specify - then one space indentation condition is violated that is reason for error. What is possible solution for this. </p>
  
  <h1>if i use - symbol for listing</h1>
  
  <pre><code>admin:
   - action: create
     resource: employee
   - action: show
     resource: company
  </code></pre>
  
  <h1>if i do not use - symbol for listing</h1>
  
  <pre><code>admin:
   action: create
   resource: employee
   action: show
   resource: company
  </code></pre>