Prettyprint without modifying the DOM by using an XBL binding. Use viewsource.css for styling. Also refactor a real sync-load service and make transformiix and XBL use it.
r=jkeiser sr=darin
git-svn-id: svn://10.0.0.236/trunk@131580 18797224-902f-48f8-a5cc-f745e15eee43