Rewrite of ktrans to act as an overlay to kbdfs.
Move map files outside of the binary in to /lib/ktrans
and get our dictionaries out of /lib while we're at it.
Use \n as an alias for ctrl-\ for first lookup, use ^w
to clear okurigana input. This also in general changes
the logic to never us to 'swallow' a character and always echo
them out, using backspaces for cleaning us up.
