title: ActionBarSherlock Custom ActionBar Layout - home icon is gone
body: <p>I'm using a custom layout on my ABS <code>ActionBar</code>, like </p>
  
  <pre><code>    View abview = getLayoutInflater().inflate(R.layout.custombar, null);
      getSupportActionBar().setCustomView(abview);
  </code></pre>
  
  <p>Now there's no home/ up button, I already tried: </p>
  
  <pre><code>getSupportActionBar().setHomeButtonEnabled(true); 
  </code></pre>
  
  <p>When using a custom view on my <code>ActionBar</code>, do I have to take care of the up button all myself?</p>