Ensure main queue MOC is created on the main queue.
Ensure main queue MOC is created on the main queue.

binhho/CoreDataStack,Sully73/CoreDataStack,binhho/CoreDataStack,gaurav1981/CoreDataStack,phatblat/CoreDataStack,sugar2010/CoreDataStack,bignerdranch/CoreDataStack,bignerdranch/CoreDataStack,gaurav1981/CoreDataStack,phatblat/CoreDataStack,bignerdranch/CoreDataStack,sugar2010/CoreDataStack,Sully73/CoreDataStack