New: add "CREATE/ALTER USER" routine to database provider to add a new user when create a new datbaase.
New: added CUBRID SHARD support. Requires CUBRID 8.4.3+.
Com: updated the comments.
Enh: allow to set a custom SHARD Broker port.
Com: updated the comments.
Enh: automatically open SHARD broker port in iptables on CentOS.
Enh: check if shard_hosts is defined by a user.
v1.7.0: added CUBRID SHARD support. Requires CUBRID 8.4.3+.