Fix validation error in iTunes Connect with MagicalRecord deprecated methods

ref:

- https://github.com/magicalpanda/MagicalRecord/issues/867
- https://github.com/magicalpanda/MagicalRecord/issues/289

![screen shot 2014-10-12 at 9 22 56 pm](https://cloud.githubusercontent.com/assets/18631/4606175/54bd90cc-5212-11e4-932f-b20ef6beede9.png)