Announce: HGAL 1.2

Hello folks, This is an announcement for HGAL 1.2. http://users.skynet.be/jyp/HGAL/ HGAL (Haskell Graph Automorphism Library) is a haskell implementation of Brendan McKay's algorithm for graph canonic labeling and automorphism group. (aka Nauty) Here are the main improvements over the previous release: * The algorithm is now more completely implemented and therefore a lot faster; * The library is now a cabal package. I'm also proud to proclaim that zero bug has been reported in the 3 years of existence of the library. (That either being due to a high quality of the library or a low number of users -- I'm not sure :) Cheers, JP.