instructure/CanvasKit — pull request #127 by nlambson (2014-07-03 20:42:38+00:00)
Title: Update Mantle dependency to latest 1.5 & fix related Model issues

The update to the pod spec version doesn't really matter, it just bothered me that it was out of date.
The range check on string is a fix for replacing iOS 8 code to iOS 7 code
The mantle update changes don't appear to affect other apps negatively