In both games, command() loops and calls the action function twice for
each command: once to schedule it by setting player.t_action and
player.t_no_move, and again, to actually do it, once player.t_no_move
has been reduced to 0. Each loop decremented count, so repeated
commands were only repeated half the number of times the player typed.
count is now decremented only when ch has been set to the repeated
command.
Keypad 5 is now equivalent to the '.' key.
XRogue does not include md_readchar() and its ability to work around
deficiencies in the terminfo entry. So the key will not be recognized
in screen/tmux or anywhere else without the kb2 capability. Adding
md_readchar() would be more complex than it was for Super-Rogue, since
XRogue already does KEY_* interpretation in command().
