Better normaliztion of Liouvillian functions.
Normalize trigonometric constants.
Don't spread textual substitutions all over the text.
Bignums via gmp in sbcl.
Eliminate double prompt at startup.
Simplify removal of ".svn" subdirectories.
Improve sort and set operations.
Add Weierstrass elliptic functions.
Integration improvement.
Add '$tryRecompileArguments' flag.