Importing MagicalRecord+ShorthandMethods.h in MagicalRecord.h - Issue 1276

[amleszk]

#1276

[Coeur]

Thank you.

1. I couldn't reproduce any compilation error, as written in the linked issue (use_frameworks! causes error: include of non-modular header inside framework module 'MagicalRecord.MagicalRecord_ShorthandMethods' #1276).
2. Changing #import <MagicalRecord/MagicalRecord.h> to #import <MagicalRecord/MagicalRecordInternal.h> is nice, so I'm cherry picking it in Improved ShorthandMethods imports #1350.
3. As for adding #import <MagicalRecord/MagicalRecord+ShorthandMethods.h> in the umbrella header, I don't know. It wasn't there for the past 3 years. Currently, I don't even know what is this enableShorthandMethods, so I would need more enlightening regarding its usage and usefulness. I'll leave the Pull Request open, but with a different title.