if the purchasable item is NonConsumableItem and it already exists then we don't fire any events
Enforce providing a custom secret
- you can now save StoreInfo to DB if you made changes to it
- you can now change price of MarketItem
- you can now change amount of PurchaseWithVirtualItem
Merge branch 'master' of github.com:soomla/android-store

* 'master' of github.com:soomla/android-store:
  - you can now save StoreInfo to DB if you made changes to it - you can now change price of MarketItem - you can now change amount of PurchaseWithVirtualItem
  if the purchasable item is NonConsumableItem and it already exists then we don't fire any events
  Enforce providing a SOOM_SEC in obfuscator