Updates Simperium Version to Mark 0.7.2
SPCoreDataStorage: Code Cleanup
SPManagedObject: Cleanup
SPManagedObject: Updates bucketList mechanism
SPCoreDataStorageTests: Implements bucketList Unit Test
SPCoreDataStorageTests: Update Remote CRUD Test
SimperiumOfflineTests: Updates unit test expectations
SPCoreDataStorage: Cleanup II
SPCoreDataStorage: Updates Core Data Architecture
Merge pull request #377 from Simperium/issue/376-updates-coredata-architecture

Updates Core Data Architecture
Merge pull request #378 from Simperium/develop

Simperium Mark 0.7.2