Bug fix: banner ads shouldn't refresh in the background anymore
Updated Burstly Android SDK to 1.19 and integrated Applifier adaptor
Refactored Android code with a simpler API. Interstitial caching now needs to be done manually. User info can now be passed for targeting purpose.
Updated Burstly SDKs: 1.20 for Android, 1.37 for iOS. Refactored iOS integration.