Added optional EXTRA_APPSTORE_SAFETY directive to disable some 'unconventional' code.

Should not be necessary but it's better to give users the option anyway. This is why it's not on by default.
See #373 for a discussion on this.
Added some safety checks around the disable-pan-over-view registration code.

See #373.
Added II_BRIDGE macros for ARC/non-ARC scenarios.

Closes #372.
Fixed -Wshadow warnings.

Fixes #371.
Fixed -Wsign-compare warnings.
Fix status bar disappearance in iOS 7 beta when setting the center controller to a navigation controller

Seems to be the issue described in Inferis/ViewDeck#408.
Add status bar methods for view controller containment

Thanks, @kreeger
Merge branch 'develop' of https://github.com/a2/ViewDeck