Log Message:
Update mathomatic to 11.0e.

Changes:
 - Changed unfactoring to improve simplification (again).  This was a
   bug fix (first one in a long time).
 - Restored "epsilon" to original value in version 10.9b.  Required
   for factoring large polynomials.
 - Changed factor_times() to preserve divides.  This improved the
   "unfactor" command.
 - Added polynomial factoring to the very beginning of "simplify"
   command.  This is necessary in case you "unfactor" a complicated
   equation, then "simplify".