Fixed Defense effect of Amistr skill for RENEWAL. Thank Antares

Signed-off-by: Cahyadi Ramadhan Togihon <house.bad@gmail.com>
* Added some new renewal items (err still need add more!)
-- http://forums.irowiki.org/showpost.php?p=1339744&postcount=72
-- http://forums.irowiki.org/showpost.php?p=1363146&postcount=480
-- http://forums.irowiki.org/showpost.php?p=1371309&postcount=730
-- http://forums.irowiki.org/showpost.php?p=1373338&postcount=751
-- Thank Antares, Ziu, nanakiwurtz, and everyone who talking about "New Cards 2013" here http://rathena.org/board/topic/89728-new-cards-2013/
-- (Anyone feel free to correct if any wrong/missing script :P)
* Updated renewal skill_required_db for Rebellion following the added items

Signed-off-by: Cahyadi Ramadhan Togihon <house.bad@gmail.com>