Patch YAML to allow only some Gem classes to be unmarshalled
Patch YAML to allow only some Gem classes to be unmarshalled

rubygems/rubygems.org-backup,rubygems/rubygems.org-backup,1337807/rubygems.org,1337807/rubygems.org,square/rubygems.org,square/rubygems.org,rubygems/rubygems.org-backup,1337807/rubygems.org,square/rubygems.org