Made changes so that it compiles on Xcode 6 Beta 7.
Created function createCellText on ViewController so that both tableView(UITableView, NSIndexPath) -> UITableViewCell and tableView(UITableView, NSINdexPath!) -> CGFloat call the same subroutine for the text.
Added "N comments" on the cell -- now it shows the title of the entry and the number of comments associated with it.