Eluna implementation (#847)

* azerothcore + eluna done.

* Remove the Eluna single thread limit.

* Read Eluna Settings file.

* submodule change.

* fix(test)  Ubuntu - Cant Link Library after Compile

* The ELUNA is disabled by default.

* remove submodule luaEngine.

* some change

* fix a error

* change cmake

* fix: some onplayerchat does not have hooks.

* Eluna: Add BG event Hooks.

* fix:cmake hook AFTER_LOAD_CONF not work.

* Remove the eluna switch.

* Remove some define in the core.

* fix conf file not read in the linux.

* eluna : change bg hook parameter type

* Remove TC log function call

* change bg hook OnBGEnd parameter type.


Note: to enable Eluna, the module is required

src/server/game/Maps/MapInstanced.cpp

@@ -15,6 +15,10 @@
 #include "Group.h"
 #include "Player.h"
 
+#ifdef ELUNA
+#include "LuaEngine.h"
+#endif
+
 MapInstanced::MapInstanced(uint32 id) : Map(id, 0, DUNGEON_DIFFICULTY_NORMAL)
 {
     // initialize instanced maps list
@@ -254,6 +258,11 @@ bool MapInstanced::DestroyInstance(InstancedMaps::iterator &itr)
     //if (itr->second->IsBattlegroundOrArena())
     //    sMapMgr->FreeInstanceId(itr->second->GetInstanceId());
 
+#ifdef ELUNA
+    //todo:[ELUNA] I'm not sure this is right.
+    sEluna->FreeInstanceId(itr->second->GetInstanceId());
+#endif
+
     // erase map
     delete itr->second;
     m_InstancedMaps.erase(itr++);
@@ -265,4 +274,4 @@ bool MapInstanced::CanEnter(Player* /*player*/, bool /*loginCheck*/)
 { 
     //ASSERT(false);
     return true;
-}
+}