title: NoClassDefFoundError with Android Support Library and Maven
body: <p>Using the latest version 4.0.0-rc.1 of the Maven Android Plugin, some classes seem to be missing in the build. I get one of those exceptions when I start the app (two possible ways to start the app):</p>
  
  <ul>
  <li>java.lang.NoClassDefFoundError: android.support.v4.app.TaskStackBuilderHoneycomb</li>
  <li>java.lang.NoClassDefFoundError: android.support.v4.widget.EdgeEffectCompatIcs</li>
  </ul>
  
  <p>Both missing classes are inside support-v4-21.0.0.aar/libs/internal_impl-21.0.0.jar.</p>
  
  <p>My dependency definition:</p>
  
  <pre><code>    &lt;dependency&gt;
          &lt;groupId&gt;com.android.support&lt;/groupId&gt;
          &lt;artifactId&gt;support-v4&lt;/artifactId&gt;
          &lt;version&gt;21.0.0&lt;/version&gt;
          &lt;type&gt;aar&lt;/type&gt;
      &lt;/dependency&gt;
  </code></pre>
  
  <p>Is this some configuration error? A bug in the Android Maven plugin?</p>