Faster 'map' for univariate polynomials.
Faster polynomial addition.
Faster iterpreter coercion.
Faster coefficient.
Correct a test.
Detect failing coercion to OrderedVariableList.
Faster coercion for unions.
Compute monomials faster.
Speed up gcd when degrees of arguments differ a lot.
add Somos option, add checkOption, clean up guessADE/guessRec/guessFE.