title: Using the new "manifestmerger" property in Android
body: <p>In the newest version of ADT (version 20 preview 3), they say that it's possible to make the libraries' manifest file become mergeable with projects that use them:</p>
  
  <blockquote>
    <p>Automatic merging of library project manifest files into the including
    project's manifest. Enable with the manifestmerger.enabled property.</p>
  </blockquote>
  
  <p>How and where do I use it? I can't see content assist helping with me on this anywhere.</p>