title: Can Yeoman generators update existing files?
body: <p>So just to give you some context, I'm trying to create a generator that will create some files (based on user input of course) <em>as well as</em> update some existing files in the project (like adding a new route for example).</p>
  
  <p>Creating the files using <code>this.template</code> is no problem... the question is: is there any way to do this with Yeoman without having to read the file using Node and doing some fanciful find and replace?</p>