Enable a slow rebalance if required
Enable ceph slow rebalance

Set noscrub when doing a big rebalance

Fixed some white space changes

Removed the restart of ceph on configuration changes as this needs to be coordinated over cluster

A chef LWRP to configure ceph on the fly, rather than restart ceph
Merge pull request #414 from caiush/ceph_slow_rebalance2

Ceph slow rebalance