Fixed some oddities with other player clients when dealing with summons
(spawning, taking damage or attacking). Fixed damage dealt to player not
apearing if the player is a GM on hiding and other players in the area
are GMs as well.
Added a queue system for waiting guilds outside the GPQ area. Changed
the way players are transported through maps on non-portal passing
cases: if not defined, a spawn point is chosen randomly for each player.
Added the PIN feature. Fixed ranking now calculating ranks now
world-based instead of overall. Rebalanced equip exp gain and made
cosmetic equipments no more leveling up (cosmetics leveling up are
useless).
Added true protection against race conditions on player trades and fixed
some situational issues. Character's quest status table also received
concurrency treatment. Quests with time limit now expires properly.
Increased subtly the performance on the server start-up.
