Updated to point at https rather than http
Supports SSL Endpoints

http://code.flickr.net/2014/04/30/flickr-api-going-ssl-only-on-june-27th-2014/
Merge branch 'pr/19'
Merge branch 'pr/20'
Version 1.0.3

Updated endpoints to SSL for Flickrs upcoming deprecation on the 27 Jun 2014
Fixed some typos
NSLocalizedDescriptionKey must be a string

Patched in the bug fix from lysannschlegel
permissionGranted is now restored during -checkAuthorizationOnCompletion:.
Added a new FKPermissionForStringPermission() function to complement FKPermissionStringForPermission().
Eliminated some redundant code in -userAuthorizationURLWithRequestToken: by calling FKPermissionStringForPermission().