Add INPopoverController as a submodule
Add the INPopoverController Xcode project to the Hacky Xcode project
Set the project tab and indent width to 2 spaces to match the current code
Implement popover previews for URLs
Prevent popover window from stealing key status
Stop NSNotificationCenter observation in HNListViewController in -dealloc
Remove copyright lines from files I created
Add INPopoverController to the colophon in the credits list