title: PGS4A build fail on /google/play_apk_expansion/downloader_library
body: <p>I've got problem with building my app for android with PGS4A. After doing android.py installsdk and android.py configure myapp I ended up with this error from android build myapp install release:</p>
  
  <pre><code>I'm using Ant to build the package.
  
  Buildfile: /home/jedrek/pgs4a-0.9.6/build.xml
  
  -check-env:
   [checkenv] Android SDK Tools Revision 24.0.2
   [checkenv] Installed at /home/jedrek/pgs4a-0.9.6/android-sdk
  
  -setup:
       [echo] Project Name: Matinf-1
    [gettype] Project Type: Application
  
  -pre-clean:
  
  clean:
  
  BUILD FAILED
  /home/jedrek/pgs4a-0.9.6/android-sdk/tools/ant/build.xml:459: ../play_licensing resolve to a path with no project.properties file for project /home/jedrek/pgs4a-0.9.6/android-sdk/extras/google/play_apk_expansion/downloader_library
  
  Total time: 0 seconds
  
  The build seems to have failed.
  </code></pre>