* Fixed an error in pincode system (follow-up r17183).
* Revised/added 'npc_isnear' to check if an NPC is nearby when opening chat rooms or using vending. (Hercules bc63ef1)
* Misc. fixes.

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17187 54d463be-8e91-2dee-dedb-b68131a5f0ec