mongodb: do not set replica_set as a global option

Rather use a per-connection parameter.

Change-Id: I141f063f18993e69e6fb1da0d8ea6dd9821a248f
hbase: do not register table_prefix as a global option

Rather use a per-connection option.

Change-Id: I53e26f72d9a7fb0e2778402801a71c2682883452
storage: remove per-driver options

Fixes: bug #1195538

Change-Id: Iac6ace9a2402237543ed35be7f4fcee91ff3e036
Signed-off-by: Julien Danjou <julien@danjou.info>
Merge "mongodb: do not set replica_set as a global option"
Merge "hbase: do not register table_prefix as a global option"
Merge "storage: remove per-driver options"