* Script updates:
- Added warpers and duplicates for Izlude (izlude_[a-d]) and Prontera Field 8 (prt_fild08[a-d]) maps.
- Updated Eden Group warpers and added new duplicates.
- Changed "Kelitula Academy" to "Cryptura Academy".
- Added a missing OnMyMobDead label in Buwaya Cave instance. (bugreport:7929)
- Added version information to Airport script headers.

* Mob spawn organization:
- Split "City Cleaners" into Pre-Renewal and Renewal directories.
- Restored Thief Bug (Pre-Renewal) vs. Thief Bug Egg (Renewal) spawns.
- Created "Town" spawn files, holding all city spawns not in "City Cleaners" files.
- Added Prontera Training Dummies and Alberta Ship Mouses.
- Moved Jawaii spawns from "fields/" into "towns.txt".
- Moved Brasilis spawns from its own directory into "towns.txt".

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