[Bug-gnubg] Default met

[Achim Mueller]

Frank Berger made an announcement at gammonu and bgonline.org that 
someone made a simulation of 1000 25p matches with gnubg, snowie bgblitz
and jellyfish. Results will be published today.

I'm not sure whether he described correctly, how the gnubg setup setup
was, but it might be that gnubg has used zadeh met as default.

For this is the worst met of all - I estimated at least 2% worse than
snowie met - my suggestion is to use either g11 or mec26 as default met.

Ciao

Achim