Remove quick video playback from the table views (refs #26)
Update Video Detail view layout (refs #23)

Update the video cell layout and prevent weird things fro, happening if
the video object is corrupted (no URL, no title, no detail or no view
count).
Give correct access to the UITableView from a cell (resolves #23)

In iOS 7 Apple changed the view hierarchy and added a
UITableViewWrapperView object between the cell and the table view. So
we have to sometimes go one level further up to get the table view.