Updated to Xcode 5 / iOS 7 preview
Navigation bar style in iOS7b2
Merge remote-tracking branch 'origin/master' into ios7

Conflicts:
	Baker.xcodeproj/project.pbxproj
Merge remote-tracking branch 'origin/master' into ios7
Merge remote-tracking branch 'origin/master' into ios7
Added Text Kit support

By default, on iOS 7, Baker will use "default" fonts (retrieved with UIFont preferredFontForTextStyle).
Font face/size constants in UIConstants.h are still accepted but deprecated.
Added 'contentsizechange' JS event for iOS 7

The event is dispatched every time a page is loaded by BakerViewController or when UIContentSizeCategoryDidChangeNotification is observed.
Merge remote-tracking branch 'origin/master' into ios7
Quickfix for Status Bar animation in BakerViewController
Turned off animation when a book is pushed on the navigation stack for ios7
Prevent hiding navigation bar twice

The fix introduced in pull request #670 caused some BakerViewController initialisation methods to be called twice, most notably the method to hide the navigation bar. This was causing issues with the hiding animation, as it was enqueued twice.
Merge remote-tracking branch 'origin/master' into ios7
Restored book opening animation in iOS 7
Fix scrollview positioning quirks in iOS 7

The main scrollview in BakerViewController used to end up in the wrong place after rotating or scrolling pages.

Fixes #1109.
Break bars dependency from statusBarHidden

Visibility of navigation bar and index view does not depend on the statusBarHidden property anymore.
Properly fixed iOS 7 status bar and navigation bar show and hide animations
Whoops! barsHidden flag should be updated BEFORE calling setNeedsStatusBarAppearanceUpdate. Fix wrong status bar and navigation bar show/hide alternation
Hide status bar in modal view

Fixes #1111.
Fixed font sizes in iOS 7

Closes #952.
Removed warning in Constants.h

The file has to be changed to do pretty much anything, so no point in
keeping the warning.