Snd 20.8:

Snd: removed gtk support
     Mike Scholz updated the Forth and Ruby scripts.

s7: s7_free 
    a git repository: git@cm-gitlab.stanford.edu:bil/s7.git
                      https://cm-gitlab.stanford.edu/bil/s7.git

checked: sbcl 2.0.9

Thanks!: Tito Latini, James Hearon, Christos Vagias, Mike Scholz, Fernando
