title: Running multiple specs defined by input file
body: <p>Given that I have an external file that will control which specs are being ran.</p>
  
  <pre><code>control.xls
  test_id|description|file_path           |run
  1      |Test 1     |./spec/test1_spec.rb|yes
  2      |Test 2     |./spec/test2_spec.rb|no
  </code></pre>
  
  <p>I have a method that reads the file and returns an array of file_paths.</p>
  
  <p>I want to use that array of files to run the spec, it can be through rake or command line.</p>
  
  <p>Is this even possible?</p>