Fix internal fields visibility; Introduce <> operator; Allow concurrent Inventory modifications
Update Amazon billing
Fix synchronization issues with Amazon purchaseUpdates
Resolve synchronization issue with queryInventory() request;
Work around Amazon IAB returning wrong sku value for subscriptions
Merge branch 'dev' of https://github.com/onepf/OpenIAB into Amazon_IAB_2.0_support
Fix review comments
Merge branch 'dev' of https://github.com/onepf/OpenIAB into Amazon_IAB_2.0_support
Merge pull request #321 from RomanZhilich/Amazon_IAB_2.0_support

Amazon iab 2.0 support