Fixed a bug causing a crash if no sort descriptors were supplied
Fixed bug whereby delegate wasn't automatically assigned to FetchedResultsController
Merge pull request #4 from SoullessPG/Unit-Test

Unit test Entity deletion and research
Added count to NSManagedObject
added countWithPredicate and associated Unit Tests
Changed store from NSInMemoryStoreType to NSSQLiteStoreType
Fix id
Added: sum, min, max, average operation to NSManagedObject
Merge pull request #5 from SoullessPG/NSManagedObjectExtension

Added operations
Merge pull request #6 from SoullessPG/feature/NSPredicate

Add Logical & and | operator to NSPredicate