More verbose sleeping before snapshot

Change-Id: If5430afde4e62f32d998466e14327a78499ccba7
Added waitForShutOff

Change-Id: Iccfe57c9ed17eb9ea656dae4a0e76b33bc1f3b64
Add configuration option wait-for-shutoff-before-snapshot

Change-Id: I626286be50e5a2677e23587824af17da903fec86
Rename configuration Options

Change-Id: I6c10fedcc7116fd42d5c31c3ef4880f882c08894
Rename variable

Change-Id: Ib56f1f2efbbb2745c9b4bb21041739fdf01b41b8
Rename variable

Change-Id: I1a4a9e7176b2ae9e6a9e1afd567b5a9ccc88532b