Version 1.0.2 -> 1.1 (October 1993):
	- added "make depend" to makefiles
	- simmel now computes the apparent velocity and acceleration of
	  the object relative to the hand, due to the motion of the
	  hand itself.  A new message "GET_POSITION_AND_D" is introduced
	  which requests the (x, x' x", y, y', y", z, z', z") of the
	  object in the hand coordinate frame.  Notice that the fact
	  that the object may be moving is not included; this extension
	  is trivial, however.  See relative_object_motion() in
	  kinematic.c.
	- WAIT and CONTINUE signals now must match!  Sending a WAIT
	  signal to simmel increments the wait variable, CONTINUE decrements
	  it.  Only when at least as many CONTINUE signals are sent as
	  WAIT signals, the robot will continue moving.
	- a new command interpreter in connel, now word-based instead
	  of character-based.
	- no more "version numbers" since I never updated them anyway.

Version 1.0.1 -> 1.0.2 (March 11, 1993):
	Suggested by sdh@falstaff.MAE.cwru.edu (Scott Heavner),
	corrections for compilation under (POSIX and) Linux.
	Basically, rewriting the signbit() and iszero()
	routines, since fp_class.h is not available under Linux.

Version 1.0 -> 1.0.1:
	A new file "include/config.h" has been created which
	is included in each and every .h and .c file.  Most
	notably, this file has a flag to set for compilation
	on SGI.  Documentation has changed accordingly.

	Files are now compiled with "gcc -O2" instead of "gcc -g".
