Adding an nf_admin_init action.
Changing field saving to an AJAX request rather than a regular POST.
Changing the way that field order is saved so that it is stored in a jQuery data variable rather than a hidden HTML input.
Fixed a possible PHP notice.
Moved the field settings main output to its own function.
Moved the remove button to inside the field LI.
Changed the save button for the admin fields tab to a button rather than a submit button.