Changed self.dynamicType in the convenience init method to use the fu…

…ll class name (can't assess self before the call to self.init there)

templates/machine.swift.motemplate

@@ -47,7 +47,7 @@ class _<$managedObjectClassName$>: <$customSuperentity$> {
     }
 
     convenience init(managedObjectContext: NSManagedObjectContext!) {
-        let entity = self.dynamicType.entity(managedObjectContext)
+        let entity = _<$managedObjectClassName$>.entity(managedObjectContext)
         self.init(entity: entity, insertIntoManagedObjectContext: managedObjectContext)
     }