* Nightmare clocktower
This is a merge from HerculesWS/Hercules@88c5a47 originally done by @Ridley8819.
All the credits belong to him.
@aleos89 cleaned up some of the grammar and removed duplicate texts.
@secretdataz added the missing mapflags.
@Atemo adjusted Cursed Book item script
Fixing pre-re / re npc support, moving /config/ folder to src root so other servers may also make use of the #define renewal dir and other stuff.
git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@16382 54d463be-8e91-2dee-dedb-b68131a5f0ec