0.17.2 - The one where REPLICATION is enough for restore

[justinvdm]

Since 0.16.0, when you run snaplet ss restore, we first check whether you have SUPERUSER privileges before attempting a restore.

However, we've also seen restores being possible in some cases with only the REPLICATION privilege. For this reason, we now check for either SUPERUSER or REPLICATION - if you have either, we attempt the restore.