+1.3.1 (04 May 2005)
+* integral() and eval_integ() can be used from ginsh.
+* Integrals can be series-expanded.
+* Fixed a library initialization problem.
+* GiNaC compiles from tarball even if lex/flex is missing.
+* Fixed bugs in canonicalize_clifford(), clifford_prime() and clifford_to_lst().
+* clifford_moebius_map(), remove_dirac_ONE() and LaTeX output of Clifford
+ objects now care about representation labels.
+* Fixed bug in gcd.
+* Better output for slashed expressions
+