Main Burstly class now only handles logging events. Interstitial events are left to the interstitial class.
AS3 BurstlyConstants. Used for keys for now. Pulled code for turning key-value-pair string to array into BurstlyConstants for re-use.
Beginning to implement multiple interstitial support for Android. Almost done but un-tested. Still need to implement callback support. Also now ensuring unqiue instance IDs for iOS and Android.