*Fix a crash in Object.h

*Fix action button saving
*Fix a crash on item swap in guild bank
*Fix exploit moving after death in Unit.cpp
*Fix assert fail at grid load in Creature.cpp
Thanks Sisif for these! :)

--HG--
branch : trunk

src/game/Unit.cpp

@@ -11176,6 +11176,7 @@ void Unit::setDeathState(DeathState s)
         GetMotionMaster()->Clear(false);
         GetMotionMaster()->MoveIdle();
         if(m_vehicleKit) m_vehicleKit->Die();
+        StopMoving();
         //without this when removing IncreaseMaxHealth aura player may stuck with 1 hp
         //do not why since in IncreaseMaxHealth currenthealth is checked
         SetHealth(0);