the 0.8.4 release, see CHANGELOG
support secret/secret_file in knife.rb

Fixes KNIFE-398
Merge pull request #64 from reaperhulk/master

[KNIFE-398] Support secret_file/secret in knife.rb
Add --ssh-keypair for using ssh keys already registered with nova.
Merge pull request #66 from hughsaunders/rackspace_keypairs

[KNIFE-420] Add --ssh-keypair for using ssh keys already registered with nova.
fixing broken flavor tests caused by a change in the available flavors on the Rackspace Cloud
Merge branch 'master' of https://github.com/opscode/knife-rackspace