PT links now show the name of the story they link to

Let's test this a bit before we put it in master, hm?
Added a check to make sure the PT XML is valid

This should fix errors with invalid stories, like PT:0
Maximum security

Firefox 24 should stop complaining now
Now supports inline greentexting
PT story names are now displayed in tooltips

Also, the link is displayed as you typed it, not PT|XXXXXXXX
Fixed up greentext regex

Also changed PT link font