remove 2.0, 2.1, and 3.0 archived releases.  added 12.0 archived release
remove 2.0, 2.1, and 3.0 archived releases.  added 12.0 archived release



Former-commit-id: 36740e4a9be3f160e830f59ef69523cc7b505349
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine