Bug fixes:
-- Pin code issue after char_refac (bugreport:9027)
-- Delete date issue after char_refac (bugreport:9029)
-- Stuck when drag item from/to inventory/cart/storage if the item cannot be moved. (bugreport:8935)
Command:
-- Added @cloneequip to clone other's equipments.
-- Added @clonestat to clone other's statuses.
-- Thank Antares for the suggestion, http://rathena.org/board/topic/95076-new-atcommands-suggestion/
Permission:
-- Added 'bypass_stat_onclone' to make user who use @clonestat can bypass stat limit.
-- Change 'atcommand_enable_npc' to 'command_enable' permission to enable use command while talking with NPC. Suggested by @aleos long time ago.
Misc:
-- Correcting some checks for bAddEff bonuses.
-- Moved status point calculaiton formula to PC_STATUS_POINT_COST, removing redundancy in pc_need_status_point and pc_maxparameterincrease.
-- Added pc_is_same_equip_index function to move all item index checks, removing redundancy in some cases.
-- Some random in-source documentations.
-- Updated map_msg_idn.conf.

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