Fix card damage fixing - Fixes bugreport:7935
Fix GVG and Card reductions for skills that use separate damage calc functions
Removed some unnecessary code causing attack underflow in homunculus - Fixes bugreport:7925
Update Feint Bomb damage formula to 2011 rebalance - Concering bugreport:7912
Update Siren's Voice to 2011 rebalance formulas - Fixes bugreport:7878
Some Skill Updates
Updated Axe Boomerange and Power Swing skill ratio formulas - Fixes bugreport:7937
- Updated Power Swing Stun rate
Updated Triangle Shot skill ratio formula - Fixes bugreport:7936
Updated Overbrand skill ratio formulas - Fixes bugreport:7938
Fixed Hundred Spear activating Spear Boomerang twice - Fixes bugreport:7899
Thanks to reineil for all the reports.

Re-added Magic Crasher fix for attack formula - Fixes bugreport:7869

Follow up to 5e3bb8a - Revert changes to attacker card fixing
Revert some code from 5e3bb8a
Fix SC bonus being applied too late - Fixes bugreport:7942
* 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>
Add cell copying across instances - Fixes bugreport:7875
* Implemented official kRO Novice Training Grounds (RE) script. (fixes bugreport:7923 and bugreport:7759)
- Added Job Test NPC, "Job Guide Lark".
- iRO's custom features are removed (Eden Teleporter and custom mob spawns).
- NPCs and warps are now duplicated on all new_*_* maps (reason unknown).
- Note: The script will be replaced with Cryptura Academy once the scripts are translated.

Signed-off-by: Euphy <euphy@rathena.org>
* Restored Izlude Arena into root directory - it should never have been disabled in Renewal. (blame: r16382)
- Note: Renewal updates will follow.

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

[npc/cities/geffen.txt]
- fixed bug with Psychic Advisor (bugreport:7928)

[npc/quests/seals/megingard_seal.txt]
- fixed small bug with Librarian where he would spam the NPC dialogue
  because of a misplaced "next"

[npc/re/merchants/enchan_mora.txt]
- fixed bug with wrong enchants (bugreport:7930)
* Implemented Bakonawa Extermination quest.
* Misc. cleaning.

Signed-off-by: Euphy <euphy@rathena.org>
* Izlude Arena updates.
- Added new Izlude coordinates and warps. (follow-up 400d0f0)
- Replaced many permanent global variables with mobcount() command.
- Removed some unnecessary global variables and OnInit labels.
- Commented all invalid label executions.
- Brought scripts up to standard with scripting conventions (label naming, spacing, etc.).
- Moved all warps from scripts into warps/ folder.

Signed-off-by: Euphy <euphy@rathena.org>
* Renewal item database update - 320 items affected.
- Added missing item scripts for hundreds of items.
- Added many new item entries.
- Updated some existing scripts with new changes. (fixes bugreport:7201)
- Uncommented all disabled items.

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