Fixed warnings...

…in two cases by deleting and re-pasting the exact same line. Yay,
Xcode! Also added casts for the setDelegate pointers it was complaining
about, fixed some issues with the header files (I missed a few lines
when copying in the method names), and removed the deprecated
viewDidUnload. Removed extraneous initWithNibName. I’m now only getting
one warning. (Nevermind… making and reverting a change fixed this
error, too.)