The Undo Update

Added the ability to undo lines when drawing on evidence. This can also be triggered with Ctrl Z.
Biblios now reacts when you accuse him of working for another masquer.
Additional feedback when solving the Gutherton arson case.
Adjusted circle detection to be more generous when solving the Tyrant's identity.
Daemon and Suspect Select lists are unclickable for 0.5 seconds so you can't accidentally select something while clicking through dialogue.
Small changes to art that are perceptible only to me.