dist/common/scripts/scylla_setup: don't abort scylla_setup when each setup script failed
dist/common/scripts/scylla_setup: don't abort scylla_setup when each setup script failed

Instead of abort scylla_setup, print warning message then continue to next setup.

Fixes #1357

Signed-off-by: Takuya ASADA <4ebfb6f510af412d6e89fefa3ab96d9c8b5e3fff@scylladb.com>
Message-Id: <1481713664-18429-1-git-send-email-4ebfb6f510af412d6e89fefa3ab96d9c8b5e3fff@scylladb.com>

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