[10935] Move script calls to ScriptMgr

- Script library presence is now optional.
- Some script hooks have new names. Scripting libraries need to be adjusted accordingly.

Signed-off-by: zergtmn <zerg@myisp.com>

src/game/Level3.cpp

@@ -33,7 +33,7 @@
 #include "Guild.h"
 #include "ObjectAccessor.h"
 #include "MapManager.h"
-#include "ScriptCalls.h"
+#include "ScriptMgr.h"
 #include "Language.h"
 #include "GridNotifiersImpl.h"
 #include "CellImpl.h"
@@ -927,7 +927,10 @@ bool ChatHandler::HandleReloadMailLevelRewardCommand(char* /*args*/)
 
 bool ChatHandler::HandleLoadScriptsCommand(char* args)
 {
-    if (!LoadScriptingModule(args))
+    if (!*args)
+        return false;
+
+    if (!sScriptMgr.LoadScriptLibrary(args))
         return true;
 
     sWorld.SendWorldText(LANG_SCRIPTS_RELOADED);