- Use the extend method of list objects to append a new list rather than a   bunch of append calls when adding more ports to an existing list. - Remove the compatXY packages from disc1 as they are only intended for use   on 5.x (6.x doesn't have them as dists anymore) and on 5.x they aren't   packages but are old-fashioned distribution tarballs anyway.
- Use the extend method of list objects to append a new list rather than a
  bunch of append calls when adding more ports to an existing list.
- Remove the compatXY packages from disc1 as they are only intended for use
  on 5.x (6.x doesn't have them as dists anymore) and on 5.x they aren't
  packages but are old-fashioned distribution tarballs anyway.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase