Paranoia check-in

I've been chucking poorly architected and half-finished classes into the
project with abandon.
Some sort of clickable node-graph exists in the admin view.
Very basic agent/world interaction shell added. It shows a
non-functional button when you approach an item. Very exciting.
AI-security stub bumbles around the node-graph doing nothing.
Port nodes now get added to expose entry points for the admin.
Main-menu twiddled to be a bit more useful.
I've basically nuked support for play-in-editor from the Hive scene.