title: Project.properties file instead of default.properties file
body: <p>I stumbled across something I can't figure out myself. </p>
  
  <p>I have an android project with a reference to a library project. Now, the weird thing is that it seems like my default.properties file is no longer needed. Android creates a project.properties file. So my questions is: what is the difference between the two? Isn't a project.properties file standard java and default.properties android specific? What do they do exactly?</p>