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/Groups/Group.cpp

@@ -1147,9 +1147,9 @@ void Group::UpdatePlayerOutOfRange(Player* pPlayer)
 
     for (GroupReference *itr = GetFirstMember(); itr != NULL; itr = itr->next())
     {
-        player = itr->getSource();
-        if (player && player != pPlayer && !pPlayer->isVisibleFor(player))
-            player->GetSession()->SendPacket(&data);
+        if (player = itr->getSource())
+            if (!player->canSeeOrDetect(pPlayer))
+                player->GetSession()->SendPacket(&data);
     }
 }