::Problem:

::Problem:
  PAGE UP, PAGE DOWN, and HOME keyboard shortcuts not longer work
  as expected

::Cause:
  Shortcuts were replaced with letter-key shortcuts (N, P, H).

::Fix:
  Restored PAGE UP, PAGE DOWN, and HOME shortcuts by appending
  those keys to the list of valid shortcuts. Now, both those and
  the letter-key shortcuts are available. Also, added RIGHT ARROW,
  LEFT ARROW, and UP ARROW shortcuts. The complete list of
  shortcuts is now:

     * forward = n, N, SPACE, ENTER, RETURN, PAGE UP, RIGHT ARROW
     * backward = p, P, BACKSPACE, PAGE DOWN, LEFT ARROW
     * up = u, U, UP ARROW
     * home = h, H, HOME
     * toc = t, T

  (Closes bug #1196429; thanks to Roland Huss for reporting the
  problem)