Replace deprecated NSManagedObjectContext "init" method with "initWithConcurrencyType"

Author: martinbaehrenzbjerregaard

eIndberetning/AppDelegate.m

@@ -179,7 +179,7 @@ - (NSManagedObjectContext *)managedObjectContext {
     if (!coordinator) {
         return nil;
     }
-    _managedObjectContext = [[NSManagedObjectContext alloc] init];
+    _managedObjectContext = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSMainQueueConcurrencyType];
     [_managedObjectContext setPersistentStoreCoordinator:coordinator];
     return _managedObjectContext;
 }