Allow escape to exit the wait menu (and others), remap wait key

Allow escape to be used to exit out of the wait menu (as well as others where it makes sense, such as iuse::knife). Note that I made sure to *not* break things like martial arts style selection, crafting ingredient selection, etc.

Also remap the default "wait" key to "_" instead of "^", after someone complained on IRC about accidentally waiting due to an iffy interface. I personally agree - I prefer to remap either the wait key, or the craft key, so that I don't accidentally wait 6 hours when I'm trying craft something.