Bug Fixes
* Spell Fist will now double damage with Double Attack and fixed damage formula. (bugreport:7024)
* Follow up to 06986d6 to fix Fire Expansion casting the wrong Acid Demonstration skill (magic type). Thanks to @Traxis.
* Fixed Rebound not removing the Decrease Agility status icon. (bugreport:8910)
* Fixed Full Throttle SP reduction rate.
* Gates of Hell now uses weapon element and is forced neutral for the final element. (bugreport:8875)
* Fixed Auto Counter to work with Crush Strike. (bugreport:6919)
* Fixed Masquerade-Groomy renewal ASPD penalty.
* Updated Acceleration, Hovering, Self Destruction, Shapeshift, Emergency Cool, Magnetic Field, Neutral Barrier, Stealth Field, and Repair skill item requirements to only check the player's inventory rather than equipment list. (bugreport:8911)
* Fixed Magnetic Field to stop players from walking in non-PvP maps. (bugreport:8911)
* Charms will now be removed when another Charm element is used. (bugreport:8914)
* Crazy Weed now destroys Man Hole and Dimensional Door.
* Man Hole and Hells Plant are able to be casted on top of players. (bugreport:8918)
* Items are now usable while stuck in Man Hole. (bugreport:8918)
* Fixed Extremity Fist naturally regaining SP during the 5 minute cooldown. (bugreport:8920)
* Fixed an issue with Extremity Fist position updating.
* Fixed Issen's damage calculation order of magnitude. Thanks to @chriser-.
* Updated the SCS_NOCAST table.
Merge branch 'rathena/master'