Removed tableViewCell property from custom UIScrollView, now uses its superview

[aout]

Any subclass would override the content view, leaving the custom scroll view with a nil ptr.
I guess this is less flexible but we could even nest the custom scroll view inside the cell itself to make it opaque for the end user.

[ashfurrow]

Yeah, I don't know. What about having the property is bad? I mean, I don't like to rely on the view hierarchy implicitly.

[aout]

I think it's just a matter of situation. I didn't find any solution with a subclass and multiple XiBs for quick prototyping.
I wanted to keep the code very neat and defer all the work to the IB. This way I can design my "front" view and my "back" view (I tweaked it a bit too) knowing I don't have anything to do but plug the IBOutlets.