Rewrote the hard monster AI. Monsters will now behave a lot closer to official servers:
* Monsters will now attack immediately when they are chasing a target and it comes into attack range (bugreport:7370)
* Monsters will now chase their target during their aDelay, but they still have to wait for aMotion to be able to move again (bugreport:9269)
* Monsters will now rethink their chase in a configurable interval (see monster_chase_refresh in monster.conf), official value is once per cell, previously it was once per 3 cells
* Monsters will now stop when they rethink their chase and their target is gone (player hides or target loot was picked), regardless of the monster_ai setting (note: if you want the old, stupid behavior, just increase monster_chase_refresh instead)
Bug Fixes
* Updated Napalm Vulcan damage to official. (bugreport:9297)
* Firing Trap should be removed immediately once it has detonated.
* Updated Expanded Super Novice ASPD values for weapons to match normal Super Novices.
* Updated Expanded Super Novice and Super Baby to be able to do anything normal Super Novices can do. Guardian Angel, Dori Dori, etc.
* Super Novices are able to equip any level 4 weapons of type Daggers, 1H Swords, 1H Axes, 1H Maces, and 1H/2H Staves while Soul Linked. (bugreport:2765, bugreport:5568)
* Reverted the Warlock elemental summons to not be limited per level from 237579c. All levels allow up to 5 summons.
Merged Pathfinding code cleanup from Hercules
(https://github.com/HerculesWS/Hercules/commit/78028c8)
* This fixes a problem where units sometimes walk diagonally through a wall server-sided; there should be less client desync now (but it might not be perfect yet)
* I kept the rAthena specific option path_blown_halt
* Special thanks to piotrhalaczkiewicz for the original implementation and aleos for helping me with the merge
Bug Fixes:
* Wrong calls, should be callfunc. Thank @raynra
* Follow up 8256194, updated const.txt following new MAPID values for Super Novices
  * EAJL_SUPER_NOVICE	0x8000, for Super Novice masking
  * EAJ_SUPER_NOVICE	0x8100
  * EAJ_SUPER_BABY	0xA100
  * EAJ_SUPER_NOVICE_E	0xC100
  * EAJ_SUPER_BABY_E	0xE100

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>