use "apt" cookbook to manage apt file.

Add "testing" as possible branch
"install" not "upgrade"
Merge branch 'noupgrade'

Conflicts:
	recipes/osd.rb
Merge pull request #11 from Youscribe/apt

use "apt" cookbook to manage apt file.
use ceph.com instead of ceph.newdream.net for apt repos
Merge branch 'master' of git://github.com/ceph/ceph-cookbooks
remove radosgw init
remove debug package