title: Get root project name in library
body: <p>Is it somehow possible to get root project name in library module when building root project? For example:</p>
  
  <p>mainProject has one module(library) project included with:</p>
  
  <pre><code>compile project(path: ':lib-subproject')
  </code></pre>
  
  <p>now in this lib-subproject i want to flavour builds based on root project name. I already tried with <code>getRootProject.getName()</code> in my lib-subproject gradle but this gives me the name of this library.</p>