* Fixed Guardian Stone respawns in WOE SE. (bugreport:7849)
* Fixed job checks in Falcon Flute Trader script. (bugreport:7839)
* Fixed Guillotine Katar slots. (bugreport:7838)
* Fixed @itembound type 4 not working.
* Bossnia changes:
- Monsters should not be spawned with 'boss_monster' according to official scripts; removed 'notomb' mapflags accordingly (partial revert of r17404).
- Merged file into events/bossnia.txt, since the spawns and warps should be disabled by default.

Signed-off-by: Euphy <euphy@rathena.org>