title: Sprockets and rails 3 - adding a new precompiled js file
body: <p>I currently have a file <code>app/assets/javascripts/application.js</code> which has a list of requires in it, and which, when i run <code>rake assets:precompile</code> cleans, minifies and concatenates all of the listed files into <code>public/assets/application.js</code>.  That's all working fine.</p>
  
  <p>However, i want to add another precompiled js file called 'show_tale.js', with a different list of js files to pull in.  I've added a <code>show_tale.js</code> file into <code>app/assets/javascripts</code> which has the list of requires in it.  But, when i do <code>rake assets:precompile</code>, it doesn't build a <code>public/assets/show_tale.js</code> file like i want it to.  </p>
  
  <p>I'm guessing that in some config file i need to add 'show_tales' or 'show_tales.js' into some list or option, but i can't work out where/how to do this.  Can anyone set me straight?</p>
  
  <p>thanks, max</p>