NPCServer update

[Admins]

The npcserver for the new scripting engine has been updated:
- the /stats command displays the top 20 scripts taking the most CPU time, and it displaying the joined classes, so it's easier to find lagging scripts
- New server options: scriptlogwritetoreadonly=true; this option will display when a script is trying to change a read-only variable (e.g. this.width=123), which can help when converting a server to the new scrpting engine; on clientside you need to set 'scriptlogwritetoreadonly = true;' by script (only works with the next Graal release, v4.0402)

You will need to restart your npcserver to make the new stuff working.