Remove unused import of MatrixCommonDenominator.
Simplify logarithms of constants.
Buid FlexibleArray during bootstrap phase.
Allow build even if Clisp lacks FFI.
Improve reducedSystem (build smaller systems).
Workaround to correctly format 'reduce'.
Do not set $badStack in browser.
Fix issue 440 and 442.
Partial fix for issue 436.
fix inaccuracy in homogeneousPart, select only lists without common factor