title: Sonar project sub-modules
body: <p>Is it possible to define sub-modules on a module in the sonar-project.properties?</p>
  
  <p>My current config looks like this:</p>
  
  <pre><code>sonar.projectKey=project
  sonar.projectName=project
  sonar.projectVersion=1.0
  
  sonar.branch=master
  sonar.sources=.
  sonar.language=php
  
  # Available modules
  sonar.modules=module1, module2
  
  # Global source directory
  sonar.sources=.
  sonar.language=php
  
  # Module1
  module1.sonar.projectName=Module1
  module1.sonar.projectBaseDir=path/module1
  
  # Module2
  module2.sonar.projectName=Module2
  module2.sonar.projectBaseDir=path/module2
  </code></pre>
  
  <p>But the module1 has also sub-modules.</p>