When initalizing a connection to psycopg2, in order to use the default
values, the keywords must be missing. So we use a dictionary as a kwarg
and include only the keywords that do not have an empty value on the
module parameters.
passwd -> password
loginpass -> login_password
loginuser -> login_user
loginhost -> login_host
Add an example playbook that shows how to use the modules.
These modules are based on the mysql_db and mysql_user modules.
Currently, the postgresql_user module can only grant all permissions
on a database, fine-grained access has not been implemented yet.
