Changed battle_config definition to extern to avoid mistakes in plugins

- This avoids plugins incorrectly using battle_config (with unreliable
  results) instead of using the proper interface, battle->bc.
- Edited various #defines to use battle->bc instead of battle_config so
  that they can work perperly in plugins as well.

Signed-off-by: Haru <haru@dotalux.com>
Follow-up to b6b3f58795288701d0e162d43fa6f0a47af913b3

- Includes in some files weren't sorted alphabetically. Special thanks
  to KeiKun.

Signed-off-by: Haru <haru@dotalux.com>
Renamed incuvate of Pet System.
Merge pull request #284 from MrKeiKun/fix_pet_table

Renamed incuvate of Pet System
Fixes and Clean-ups from Euphy for Wolfchev's Lab.
Re-Upload and fix the aegis conversion for item_db.conf
ItemDB SQL Sync

Signed-off-by: HerculesWSAPI <Hercules@efficiently.awesome>
Follow-up to 5f5380e8d5fa2e6042813e35101cb33b656e3972

- Fixed a missing semicolon in the upgrade script. Special thanks to
  QQfoolsorellina

Signed-off-by: Haru <haru@dotalux.com>
Follow-up 5f5380e and a42f880e, Fixed crappy coding with sql-update file(Special thanks to QQfoolsorellina)
Added missing changequest commands on Alchemist Job Change Quest.
Merge branch 'master' of http://github.com/HerculesWS/Hercules
Fixed box of invisibility
disabled use of flywings and butterfly wing from pvp map
increased drop rate of pole axe from gryphon to 0.2%
Fixed the warper npc