Revert "Update to rc1"
Revert "Update to rc1"

This reverts commit e48ed85e7f3410421dab999a04554f6c35d3dd38.

ukblewis/bson-ruby,estolfo/bson-ruby,estolfo/bson-ruby,mongodb/bson-ruby,agis-/bson-ruby,estolfo/bson-ruby,mongodb/bson-ruby,mongodb/bson-ruby,ukblewis/bson-ruby,agis-/bson-ruby,hudon/bson-ruby,hudon/bson-ruby,johnsimon/bson-ruby,johnsimon/bson-ruby,ukblewis/bson-ruby,estolfo/bson-ruby,mongodb/bson-ruby,ukblewis/bson-ruby,agis-/bson-ruby,hudon/bson-ruby,johnsimon/bson-ruby