Changelog of @hackage/agum 2.0

2009-08-29 John D. Ramsdell ramsdell@mitre.org

* src/Algebra/AbelianGroup/UnificationMatching.hs (Substitution,
apply): Hid the representation of a substitution and supplied a
function for applying a substitution to a term.

* agum.cabal (Version): Released as version 2.0.