of user keys (documentation pending). The only key whose semantics have
changed is the capital 'N' key, which now performs a repeat-search in the
opposite direction (just like in vi).
This commit is a little bulkier than what I had originally planned. I'm not
completely happy with the direction it went, but it's definately an
improvement, and the alternative is to continue becoming irrelevant compared
to GNU less. (Does anyone even _use_ /usr/bin/more these days?)
