added StoreControllerInitialized event
removed 3rd parties

- removed JSONKit (using ios native JSON parsing)
- removed external UUID support. Using Apple's "identifierForVendor".
- added default values to ObscuredNSUserDefaults's functions.
added 'forceUpgrade' to StoreInventory
KeyValDatabase now support querying with wildcard
KeyValStorage now support setting/getting value with encryption and without
upgrading/equipping/changing-balance only if needed
added 'resetBalance' to all VirtualItems