In new version last update time stopred for specific Cell that store all world objects
placed in it. All objects of Cell updated (or not updated) in same time.
Original version provided by ciphercom.
This reverts commit 10784a8c7cc81c468b5411e973d36ecf31de9603.
Main reason: impossibility for me as commiter test problem and fix all corner cases problems.
Now in case when creature/etc some tices not updates in result stay
in not active (no near players or active objects) cell some important
timers (corpse decay, summon timers, group loot expire, aura durations, etc) will
updates at real diff time from last prev. update call.
Signed-off-by: VladimirMangos <vladimir@getmangos.com>
For some systems added exclude use real diff time because current limitations
like move generators. So its stay use last tick diff and considered freeze and
skip all time while creature in not active map part.
