Second commit with lots of different changes

There is still gona be allot of changes!

- Renamed project to WPF (Wordpress Foundation)
- Made 1 functions.php file without includes.
- Deleted fallback for menu's (dont need them. Just set 'callback_cb'
to false when you use wp_nav_menu()
- Added versions constant in functions for all foundation file's
- Changed some of the core files (header.php, footer.php, index.php).

In the next commit I will make allot of changes/improvements to the
layout it seld and also change/add some functions inside functions.php.