Log Message:
Update mathomatic to 11.3c.

Changes:

"factor number" command now accepts more than one integer.

Added file "mathomatic.ico".

Added temporary fix for 64 bit longs.

Added file "VERSION" which contains the version number of Mathomatic.
"makefile" modified.

Renamed "lgpl.txt" to "LICENSE.txt".

"make install" now installs all HTML files in \ 
"/usr/local/doc/mathomatic".

Added compile-time define "TIMEOUT_SECONDS".
Useful for limiting the amount of time Mathomatic can run as a CGI.