Update Exp bonus rings to reflect displayed affects

http://forum.square-enix.com/ffxi/threads/40657-Mar-18-2014-%28JST%29-Version-Update?p=498470&viewfull=1#post498470
Rings were modified in March 18th update. Noticed difference between
script and displayed item when testing rings for dedication fix. Changed
duration, re-use timer and dedication caps.