Added a check for Google Play Services availability before trying to use it to retrieve Google Advertising ID
Mobvious on Android now tries to display an ad and stops at the first failure for a delay specified on MoPub (retryDelay in custom network parameters, in seconds).
Rebuilt the ANE and swc files with flex 4.13.0 and AIR 15.0.0.349
Merge branch 'SM-1314_SM-1283'