Added PubNative Interstitials library.
Proper iterator usage.
Fixed loading error behavior.
Release views on activity termination.
Fixed redirect on tracing server not available.
Made number of ads customizable.
GameListDelegate.
Added category to native format.
Optimized memory consumption.
Added AdCarouselView.
AdRequest: put app token to params on object creation.
AdCarouselView: optimized scrolling/flinging.
Added branding image.
Release 1.0.