Remove JSONKit -- iOS5+ has a built-in JSON parser
Merge pull request #809 from sdarlington/26d6cac1a75b3ffb24b3419904558a5ac1b6d264

Remove JSONKit
Minor code DRYup
Guard to avoid fetching shelf when not specified
Removed function to skip backup attribute

According to the iOS Data Storage Guidelines, files marked with a "do not backup" flag are not deleted in low-memory situations.
We should not mark as "do not backup" files that are in the cache and can be safely deleted.

Closes #595.
Removed redundant log message
Re-added basic support for book protocol: now with book:// links is possible to download or open every book on the shelf
Merge branch 'master' of github.com:Simbul/baker
Removed doubletap-to-focus on Baker pages when zoom is not enabled
Updated currentStatus as an accessors of the IssueViewController
Break the cycle on target issue found
Code cleaning and optimization
Fix: restored -baker-vertical-pagination support

Fixes #827.
Fix: origin for index view shouldn't change

Fixes #774.
NSLog comments have been updated, shortened and clarified.
Merge commit 'da5074688b6670eac77fa0044824de4efde63c4e' into newsstand_notification

Conflicts:
	BakerShelf/IssuesManager.m
	BakerShelf/ShelfViewController.h
	BakerShelf/ShelfViewController.m
	BakerView/BakerViewController.m