Log Message:
Update mathomatic to 11.0f.

Changes:
  - Removed calc() fraction code for accuracy because of fraction slack
    that was implemented in version 10.9c.
  - Solve increase power function wasn't working with odd number roots.
    Fixed.  Appears to be another gcc optimizer bug.
  - Improved simplify command.
  - Tweaked factor_constants().
  - Some changes to "makefile" for "readline" support.
    "GNU make" or "gmake" required now.
  - Fixed solving of "x^(1/99)=x".
  - Fixed readline bug.