scylla_setup: Inform the user that he can skip any step
scylla_setup: Inform the user that he can skip any step

Fixes: #1188

Signed-of-by: Benoît Canet <ecd1f14f7c1c6dc7a40210bdcc3810e0107ecbc8@scylladb.com>
Message-Id: <1466001423-9547-3-git-send-email-ecd1f14f7c1c6dc7a40210bdcc3810e0107ecbc8@scylladb.com>

raphaelsc/scylla,scylladb/scylla,duarten/scylla,kjniemi/scylla,raphaelsc/scylla,kjniemi/scylla,duarten/scylla,scylladb/scylla,avikivity/scylla,scylladb/scylla,avikivity/scylla,kjniemi/scylla,scylladb/scylla,raphaelsc/scylla,avikivity/scylla,duarten/scylla