Core/Scripting: Update Kirtonos script.
Core/Misc: Fix a couple of warnings, some of them performance related

Errors were found using Cppcheck, open-source static analysis tool
Core/Scripting: Fix Typo.
Core/Spline: Fix typo, I blame not enough Ctrl+S
DB/Gossip/Waypoints/Creature_text: Db data for Harrison Jones Gong Event.
DB/SAI: Fixed some runtime errors.