Required files
fog/compute/aws
fog/compute/bluebox
fog/compute/brightbox
fog/compute/ecloud
fog/compute/go_grid
fog/compute/linode
fog/compute/new_servers
fog/compute/ninefold
fog/compute/rackspace
fog/compute/slicehost
fog/compute/storm_on_demand
fog/compute/virtual_box
fog/compute/voxel