auth0/SimpleKeychain — pull request #4 by Yspadadden (2014-12-04 08:34:14+00:00)
Title: Fixed issue with TouchId and hasValueForKey:

## TouchID issue:
There is a problem when updating an item that was stored with touchId. SecItemUpdate() is not
allowed on such items. See Known Issues in https://developer.apple.com/library/ios/releasenotes/General/RN-iOSSDK-8.0/

## hasValueForKey:
Always returned NO, when the key was != null.