MDM Support

I've added support for sending Apple MDM notifications via APNS. If you are unfamiliar with this functionality, you can read about it here:

http://media.blackhat.com/bh-us-11/Schuetz/BH_US_11_Schuetz_InsideAppleMDM_WP.pdf

Page 11 in particular mentions the payload. Regrettably, I do not have an official Apple doc to reference at this time.

I've tested the modification and it works. Hoping others can find use in this.