title: Circle CI integration on Android with external module hosted on a different github repository
body: <p>I have an Android project with my own external module hosted on a different github repository. On my <code>settings.gradle</code> I set this module as follows:</p>
  
  <pre><code>include ':common'
  project(':common').projectDir = new File(settingsDir, '../android-common/common')
  </code></pre>
  
  <p>Currently, Circle doesn't build my project because it obviously doesn't know about my <code>android-common</code> folder. </p>
  
  <p>Is there a way I could set this up to make my build work?</p>