Bug Fixes
* Fixed Venom Splasher consuming a second Red Gemstone. (bugreport:8506)
* Corrected Final Strike's damage formula. (bugreport:8648)
* Shield Boomerang should always be a neutral attack.
* Shield Chain should always take the element of the weapon.
* Updated Occult Impact damage and force element to neutral on final attack. (bugreport:7462)
* Added a list of skills that get forced to neutral for the final attack in renewal mode. Merge from idAthena.