Fixed skill unit effect issue, wrong used packet for newer client. Causing some skills shows wrong animation. (Partial merge from 3CeAM 2.0 r16, r17, & r18)

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
Update fallen angel wing item script (bugreport 9192)

Signed-off-by: Capuche <capucrath@gmail.com>
Little clean-up

Signed-off-by: Capuche <capucrath@gmail.com>
* Bug Fixes:
- Added base level modifier for Great Echo. (bugreport:9179).
- Fixed Max HP/SP rate reduction, should be limited to -100% if the value less than it. (bugreport:9195).
- Fixed Knuckle Arrow (SR_KNUCKLEARROW, Sura) knockback damage bonus behavior. (bugreport:9096).
- Fixed Knuckle Arrow (SR_KNUCKLEARROW, Sura) knockback direction by saving last direction before attacker slides to target first.
- Fixed Overbrand (LG_OVERBRAND_BRANDISH, Royal Guard) knockback damage bonus behavior. (bugreport:9096).
- Fixed knockback direction for Arrow Shower (AC_SHOWER, Archer), now using target to attacker direction. (bugreport:1709).

* Misc:
- Added new flags for Skill Unit to remove hardcoded checks:
--- UF_NOKNOCKBACK: Cannot be knocked back (only unit that can be damaged).
--- UF_REM_CRAZYWEED: Removed if be overlapped by GN_CRAZYWEED.
--- UF_REM_FIRERAIN: Removed if be overlapped by RL_FIRE_RAIN.
- Implemented knockback damage bonus for Round Trip (RL_R_TRIP, Rebellion).

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
Updated README files

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
Merge pull request #93 from cydh/idea

Updated README files
Some CPPCheck clean ups

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
* EXP updates for Renewal
-- Base Level 150 ~ 175 for 3rd classes & Expanded classes (256 ~ 1000 use custom gap 10m)
-- Job Level 50 ~ 60 for 3rd classes (61 ~ 255 use custom gap 5m)
Reference: http://www.divine-pride.net/database/experience

* Follow up fea3489
- Got extra ';' there https://github.com/rathena/rathena/commit/fea348968cf090e2c69d0cdf2573b511cbc82fe2#commitcomment-7332456
- Reduce w1's length

* Added some newline at end of file

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
Follow up fea3489, just 'char' to 'uint8'

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
Bug Fixes
* Fixed Shield Spell not being able to be casted. Can now be casted even with skill_unconditional permission while wearing no shield. (bugreport:9198)
* Fixed divest chance of Earth Strain to official. (bugreport:8999)
* Cleaned up ATK and WATK calculation for some skills to only work in pre-renewal.
* Fixed Magnum Break not giving 20% Fire property damage. (bugreport:9199)
Enhancement to a if else... sounds better I guess
* Fixed bugreport:9211. Basilica causes map-server crashed when caster changing map
* Some source docs for skill.c/h

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
Bug Fixes
* Fixed mouse cursor displaying incorrectly for PvP scenarios. Thanks to Napster. (bugreport:8605)
* Fixed summons getting stuck when master gets too far off screen or changes maps. (bugreport:9152)
* Added a battle_config 'spawn_direction' for keeping a  character's face direction when teleporting/changing maps/logging in. Default is always North (official). (bugreport:8754)
* Cast sensor mobs should always target the caster whenever any skill is used. (bugreport:8555)
* Added a packet version check to char_del_option based on client date. (bugreport:8521)
* Script command query_sql will now return -1 on an empty result or failed result. (bugreport:5937)
Merge branch 'master' of https://github.com/rathena/rathena
Merge pull request #94 from anubisK/else_correction

Follow up to adabedb. Preprocessor cleanup.
Script bug fixes.
- Added Renewal location for "Knight De Thomas" NPC (previously inaccessible), and upgraded the script to the latest version.
- Fixed Pre-Renewal Merchant Quest questlog commands. (bugreport:9218)
http://rathena.org/board/tracker/issue-9218-merchant-quest-add-error-quest-add-1010/
- Corrected a handful of 'rand(1)' statements.

Signed-off-by: Euphy <euphy.raliel@rathena.org>
Updated Renewal Izlude Magazine & Bullet dealer locations.
- Coordinates taken from a recent iRO update.

Signed-off-by: Euphy <euphy.raliel@rathena.org>
- Added check to clear skill unit group that created by NPC/script before the NPC/script unloaded.
- Changed enum for NPC subtype, added prefix NPCTYPE_. See map.h::npc_subtype.
- Changed Channel_Config struct usage to -> extern struct Channel_Config channel_config.
- Added restriction for atcommand that cannot be executed when Player is in autotrade, to prevent map crash. (bugreport:9196) TODO: Check other atcommand or change this behavior.
- Added enum for atcommand restriction with prefix ATCMD_NO. See atcommand.c::e_atcmd_restict.
- Updated atcommand documentations.
- Changed dummy_sd's attributes to group_id & group_level 99, and gives all permissions (PC_PERM_ALLPERMISSION). dummy_sd is being used by 'atcommand' or 'useatcmd' script when no rid/player attached.

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
-Update doc/souce_doc.txt for refactoring change
-Add doc/packet_interserv.txt and doc/packet_client.txt, to refer packets
-Upd src inner documentation, map/intif mostly
-Add  common::utils::check_filepath(), fixing bugreport:9131 @loadnpc crash
-Fix pc_level_penalty_mod not using mob_class correctly
-Fix db/import/ for produce, arrow, abra, impro db...
-Upd install script (config.pl) to use mariadb for fedora/centos distrib
Bug Fixes:
- Fixed map-server crashed caused by Wall of Thorn when atatcked by Fire element (with wide range skill unit, bugreport9102). Also reverted some changes in c046668
- Added config conf/battle/skill.conf 'arrow_shower_knockback', as follow up 453b6d0. Direction of Arrow Shower knockback depends on Arrow Shower location

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>