title: Cannot add a configuration with name 'testCompile' as a configuration with that name already exists
body: <p>When updating to gradle plugin 1.1.0 I kept getting the following error</p>
  
  <pre><code>Cannot add a configuration with name 'testCompile' as a configuration with that name already exists
  </code></pre>
  
  <p>I am also using the Robolectric gradle plugin from <a href="https://github.com/robolectric/robolectric-gradle-plugin" rel="noreferrer">here</a>, v0.14.0. </p>
  
  <p>The new gradle 1.1.0 plugin adds additional unit test support, so I suspect the gradle and Robolectric plugins are battling for use of 'testCompile,' though I'm not sure how to resolve this.</p>