- Uses XGetWMSizeHints instead of XGetNormalHints so that it can
use PBaseSize in compliance with ICCCM.  Now gets R4 xterm size
right (used to be off by 1)  Thanks to Casey Leedom <casey@gauss.llnl.gov>
for this one.

- xplaces doesn't whine about toplevel windows without WM_COMMAND now.

- rcmd much improved -- runs much faster on machines without builtin
test in the shell, can take multiple commands for a single machine
from stdin (rsh is too slow for csh users to afford one per remote
command)
