[10371] More wide use ObjectGuid in group code.

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<pre>m src/game/BattleGround.cpp
m src/game/BattleGround.h
m src/game/BattleGroundHandler.cpp
m src/game/ChatHandler.cpp
m src/game/Group.cpp
m src/game/Group.h
m src/game/GroupHandler.cpp
m src/game/LFGHandler.cpp
m src/game/Level1.cpp
m src/game/LootHandler.cpp
m src/game/Map.cpp
m src/game/MiscHandler.cpp
m src/game/NPCHandler.cpp
m src/game/ObjectMgr.cpp
m src/game/Player.cpp
m src/game/Player.h
m src/game/Spell.cpp
m src/game/Unit.cpp
m src/shared/revision_nr.h
</pre>
<pre style='white-space:pre-wrap;width:81ex'>[10371] More wide use ObjectGuid in group code.

Also drop some unused functions.
And fix some uint32 -> uint6 guid assigns.</pre>




Дальше... (http://github.com/mangos/mangos/commit/ebbe668cd8f96507b1110478ed5b2019674bf59b)