Remove warnings from IISideController.m

Remove warnings for missing brackets around initialization of sub object
Fix #370: Multiple warnings with -Wsign-compare
Fix #371: Multiple warnings with -Wshadow
Fix #372: '__bridge' casts have no effect when not using ARC
Fix #369: Deallocing IIViewDeckController causes KVO observers to not be removed
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Added storyboard ID properties -- much easier to use in storyboards.
Fixed property names.
Fixed that parentViewController was not set on child controllers if IIViewDeckController is the window root.
Removed swizzling of UIViewController's present(Modal)ViewController which breaks UIViewController's presentingViewController property and thereby modal unwind segues. iOS 5+ uses UIViewController's definesPresentationContext property to determine which controller is parent for a modal view controller. That system should handle presentation just fine even without swizzling.
Fixed that _shadowLayer was not added to the layer hierarchy if the delegate implements viewDeckController:applyShadow:withBounds:.
Corrected intendation: tabs -> spaces