[A-4682] Multilibpkg 1.2.120425 Released

Multilibpkg is an automated tool for managing (installing, upgrading, and uninstalling) of 64-bit part of AlienBob's multilib for slackware-64.

1. WHAT'S CHANGED This maintenance release : + includes addition of "gcc-go" into the list of packages that form the "64-bit part of the multilib". This package has been added in Slackware-current (successor of 13.37), and by extension into the multilib maintained by Eric Hameleers.