timehop/apns — pull request #11 by alytvynov (2014-12-09 01:01:48+00:00)
Title: Add category field to APS struct

According to http://devstreaming.apple.com/videos/wwdc/2014/713xx1il4h4ur9c/713/713_whats_new_in_ios_notifications.pdf?dl=1 (slides 65+) iOS 8 adds support for new category field in aps object.
This PR adds the new field to corresponding struct.