Replaced all remaining ACE based Singletons

Replaced ACE base AutoPtr class with shared_ptr
Note: worldserver currently broken due to MapUpdater threading failure (ACE ofc, what else could it be)

src/server/game/Scripting/ScriptMgr.h

@@ -20,7 +20,6 @@
 #define SC_SCRIPTMGR_H
 
 #include "Common.h"
-#include <ace/Singleton.h>
 #include <ace/Atomic_Op.h>
 
 #include "DBCStores.h"
@@ -869,20 +868,23 @@ class GroupScript : public ScriptObject
 };
 
 // Placed here due to ScriptRegistry::AddScript dependency.
-#define sScriptMgr ACE_Singleton<ScriptMgr, ACE_Null_Mutex>::instance()
+#define sScriptMgr ScriptMgr::instance()
 
 // Manages registration, loading, and execution of scripts.
 class ScriptMgr
 {
-    friend class ACE_Singleton<ScriptMgr, ACE_Null_Mutex>;
     friend class ScriptObject;
 
     private:
-
         ScriptMgr();
         virtual ~ScriptMgr();
 
     public: /* Initialization */
+        static ScriptMgr* instance()
+        {
+            static ScriptMgr* instance = new ScriptMgr();
+            return instance;
+        }
 
         void Initialize();
         void LoadDatabase();