title: Coffee script compilation
body: <p>I'm looking for simplest possible way to automatically recompile coffee scripts into JS.</p>
  
  <p>Reading <a href="http://jashkenas.github.com/coffee-script/" rel="noreferrer">documentation</a> but still having troubles to get exactly what I want.</p>
  
  <p>I need it to watch folder <code>src/</code> for any <code>*.coffee</code> files modifications and compile them into concatenated javascript file into <code>lib/something.js</code>.</p>
  
  <p>Somehow can't combine watching, compiling and concatenating together. :/</p>