Log Message:
Update mathomatic to 11.3b.

Changes:
Proper exit after error reading files on the command line.

Added code to preserve roots of integers, if the result is irrational.

Fixed "calculate >filename".

Made "+/-2^.5" work as expected.

Code cleanup.

Full simplify added for every loop of taylor command.

Removed "replace temp" option, so that the "temp" variable \ 
can be renamed.