Recent changes to the Mx and Tx programs:

1. (3/16/90) "showGlobals" changed to "showVars" and improved.

2. (3/22/90) Added "mxsync" feature:  if mx is invoked under this name
then it won't detach.

3. (3/25/90) Added "reset" command.

------------------------- Version 2.2 ----------------------------

4. (3/29/90) Added "where" procedure, new help menu entry to print
error information.  Added help menu to Tx.

5. (3/29/90) Added "control", "mxopen", and "mxsend" to Tx, plus a
bunch of command procedures (used in help menu).

6. (3/29/90) Fixed bug with size hints that caused window mgrs to
under-report # lines and cols in window.

------------------------- Version 2.3 ----------------------------

7. (4/19/90) Do tilde substitution automatically whenever things are
known to be file names.

8. (4/19/90) Fixed bug with improper redisplay after certain menu
operations:  area of menu didn't get redisplayed right.

------------------------- Version 2.4 ----------------------------
