Core:

- Redesigned stealth and invisibility handling
  - Implemented the handling of multiple stealth types
- Implemented fake inebriation
- The message deliverer no longer sends packets from a non-visible source
  - The server won't send that much garbage which just takes bandwith
  - It won't be possible to use cheats to detect invisible objects
- Removed a lot of checks for the Z-coord
  - Fixes visibility problems happening while flying
- Limited the grid activation range of creatures to use less resources
- Implemented Shroud of Death
- Implemented increased visibility range for active objects
- Removed visibility check at spellhit (only sanctuary effects should prevent it)
(And a lot of other changes...)

Closes issue 4208
Closes issue 3049
Closes issue 2097
Closes issue 2198
Closes issue 2384
Closes issue 2197
Closes issue 2319

--HG--
branch : trunk

src/server/game/Grids/ObjectGridLoader.cpp

@@ -103,8 +103,6 @@ template<> void addUnitState(Creature *obj, CellPair const& cell_pair)
     Cell cell(cell_pair);
 
     obj->SetCurrentCell(cell);
-    if (obj->isSpiritService())
-        obj->setDeathState(DEAD);
 }
 
 template <class T>