NTSL Stuff.

Created by: PJB3005

I've decided to stop working on this, sadly, what I did do should be mergable.

• Move all of NTSL to absolute pathing.
• Move all the datums used to subtypes of /datum.
• Fix some NTSL bugs.
  • / operator is broken.
  • HTML classes get fucked by NTSL. @N3X15 said he was gonna fix this.
  • += operator did not work for lists.
  • > or < gets stripped out.
  • Replace sometimes malfunctioned.
• Give the TCS IDE a really fucking great IDE, using CodeMirror.
• Add a ton more default functions.
• View server memory.