Integrated files from the 960gs project - http://960.gs/
Removed unnecessary file, as it's no longer used
UI cleanups - First set of UI changes, based on feedback from IRC and the Infrastructure mailing list.
Removed yui-combo.css, as it's no longer used
Corrected some minor html5 syntax checker compliance problems
Added hrefs into the urls that show the nite and gate codes. This makes the items more obviously clickable to users, as they now have the standard underlining and colour.
I no longer use the nav element as a css key when styling the menus, as IE doesn't support it fully. I now match against the menu-container div. I decided to do this rather than include the HTML5 shiv, as it's less clutter/overhead
Changed the input type for the login email address from 'text' to 'email', so that iphones don't capitalise the first letter, and show the '@' symbol on the keyboard
I've removed the signup link if the user is already a member, since signup.php redirects to the member page if it's clicked.