Removed the nib files and build collection/table views in code instead
Tweaks from code review, expose tableView and collectionView so they can be customized as needed
Allow the table view and collection view to be set in storyboard/nib if desired
Common setup for the grid layout, and don't allow IB changes to the column count
Merge pull request #6 from brockboland/nomorenibs

Removed the nib files and build collection/table views in code instead