Convert to using ACE for reading configurationfiles, and remove dependency on dotconfpp configuration library and related files

(patch by astellar - and a thankyou to vladimir for being a russian teddybear)

--HG--
branch : trunk

src/server/game/Chat/Commands/Level3.cpp

@@ -45,7 +45,7 @@
 #include "SkillDiscovery.h"
 #include "SkillExtraItems.h"
 #include "SystemConfig.h"
-#include "ConfigEnv.h"
+#include "Config.h"
 #include "Util.h"
 #include "ItemEnchantmentMgr.h"
 #include "BattleGroundMgr.h"