Call -[UIWebView stopLoading] before its delegate deallocates.

Apparently this might help prevent some crashes from the WebThread.

Bonus: move -[AwfulBrowserViewController viewDidLoad] and
-[AwfulPostsView dealloc] to more helpful places.
Stop removing nonexistent shadow from UIWebView.

Left over from old iOS versions.
Nil out table view data source on dealloc.

Seeing some crashes that look like a table view calling a deallocated data
source. Maybe this will help.
Make and use script to fix copyrights atop files.