title: google maps v2 does not load after publishing in google play
body: <p>I recently developed an app based on google maps API v2, Before publishing i checked my app on my device and emulator it worked fine, but after publishing , (when downloading through google play) map does not load ,i see white space not map..</p>
  
  <p>I am preety confused here.
  Please guide me to solve this problem.</p>
  
  <p>Thanks</p>