- Modified @monster command to use map_search_freecell (prevents mobs spawning on non-walkable tiles)
- Modified @nuke to invoke skill_cast_nodamage_id instead of the damage_id version (fixes sprite and splash damage for the skill)
- Corrected Venom Knife's requiring two knives per use.
git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@6124 54d463be-8e91-2dee-dedb-b68131a5f0ec