Hotfix WE security issue

BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java

@@ -48,7 +48,7 @@ public class ScriptListener implements Listener {
         BookMeta meta = (BookMeta) item.getItemMeta();
         for(String page : meta.getPages()){
             for(String command : page.split("\n")){
-                PlayerCommandPreprocessEvent preprocessEvent = new PlayerCommandPreprocessEvent(player, command);
+                PlayerCommandPreprocessEvent preprocessEvent = new PlayerCommandPreprocessEvent(player, "/" + command);
                 Bukkit.getServer().getPluginManager().callEvent(preprocessEvent);
                 if(preprocessEvent.isCancelled())
                     continue;