title: getActionView returns null with searchview
body: <p>Trying to get searchview to work on app.</p>
  
  <p>sdk min 17 max 22</p>
  
  <p>testing on emulator api 18</p>
  
  <p>menu xml </p>
  
  <pre><code>&lt;menu xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"&gt;    
      &lt;item
          android:id="@+id/action_settings"
          android:orderInCategory="100"
          android:title="@string/action_settings"
          app:showAsAction="never"/&gt;
      &lt;item android:id="@+id/search" 
          android:icon="@drawable/ic_action_search" 
          android:title="@string/search_title" 
          app:showAsAction="ifRoom|collapseActionView" 
          android:orderInCategory="200" 
          app:actionViewClass="android.support.v7.widget.SearchView"&gt;        
      &lt;/item&gt; 
      &lt;item android:id="@+id/scan" 
          android:title="@string/scan" 
          android:showAsAction="ifRoom"
          android:orderInCategory="300"&gt;        
      &lt;/item&gt;   
  &lt;/menu&gt;
  </code></pre>
  
  <p>onCreateOptionsMenu</p>
  
  <pre><code>@Override
  public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
      super.onCreateOptionsMenu(menu, inflater);
      // Inflate the menu; this adds items to the action bar if it is present.
      inflater.inflate(R.menu.material_toolbar, menu);
  
      SearchView searchView = (SearchView) menu.findItem(R.id.search).getActionView();
      searchView.setOnQueryTextListener(new OnQueryTextListener() {           
          @Override
          public boolean onQueryTextSubmit(String query) {
              Log.d(TAG, "onQueryTextSubmit");
              return false;
          }
  
          @Override
          public boolean onQueryTextChange(String newText) {
              materialUpdate();
              return false;
          }
      });
  }
  </code></pre>
  
  <p>Running debug and looking at the search menu item shows action as null.</p>
  
  <p>The layout display shows the android.support.v7.widget.SearchView as unknown xml attribute.</p>
  
  <p>I am using Eclipse instead of Android Studio on this project.</p>