title: AdMob error "you must have adactivity declared in androidmanifest.xml with configchanges"
body: <p>I'm trying to get AdMob in my android-app.
  When i launch the emulator it says:</p>
  
  <p>"you must have adactivity declared in androidmanifest.xml with configchanges"</p>
  
  <p>There are a lot of topics about this but no one fixt the issue.</p>
  
  <p>Please help me out!</p>
  
  <p>Greetz, Jasper....</p>