Persistent volumes creation and attachment.
implied_volumes for non mini ephemeral complete, start / stop operations on the servers removed for SCE. SCE does not support start / stop.
Information on flavors corrected, added support for Bronze
Cluster kill takes care of the volumes, detaches and destroys if the latter necessary.
flavor_info fixes
OHAI plugin replacement
SCE volume data: volume_id, device and mount_options are restored from Chef server prior to sync.
Working on security groups implementation
autorize_port_range, authorize_group implemented
Finixhed implementation of SCE security groups
Added support for datacenter attribute in cluster definition.