* Removed the crc feature to generate instance npc names. The instance npc name will be "dup_" + instanceid + "_" + srcnpcid.
* Removed the big array under map structure and coded in a different way. It was only used to generate map names, but i just used the instance_id + "origin map name".
* Moved all instance features to separated files.
* Moved the npc duplication for instances into npc.c as Ultramage says (removed npcname_db from npc.h).
* Added recomendations for scripts commands by Saithis.
- Testing required, i will prepare Endless Tower script soon. I hope this do almost anything in bugreport 3276.
git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@14003 54d463be-8e91-2dee-dedb-b68131a5f0ec
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