DB/SAI: Script more quest complete scripts

Script turn in events for http://www.wowwiki.com/Quest%3ABlighted_Last_Rites and http://www.wowwiki.com/Quest%3ATest_at_Sea

All waypoints, texts, spells are sniffed,

Also fix Blighted Last Rites so it works properly, as the Scarlet Onslaught Prisoner should not die when the flask of the blight is used on it instead it should emote 'The %s moans but seems otherwise unaffected by the blight.' so fixed that too.