Usage: /load history
  Let's you use a few special escape sequences in a line.
  !$ expands to the last word in the previous line
  !0 !1 !2  up to !9 expand to the first ten words in the last line
     entered
  !* expands to all words but the first one in the last line entered
  Use meta3-h to toggle function on and off..  ^K is bound to meta3
  in this script, thus  ^K-h will turn it on and off.
