VMM/Handler: renamed some methods and added their missing docstrings:
- cfgDget() -> cfg_dget()
- cfgPget() -> cfg_pget()
- userByID() -> user_by_uid()
# All parameters are described in pgsql_table(5) / PGSQL PARAMETERS
#
# The hosts that Postfix will try to connect to and query from.
hosts = localhost
# The user name and password to log into the pgsql server.
user = postfix
password = some_password
# The database name on the servers.
dbname = mailsys
# The SQL query template used to search the database
query = SELECT transport FROM postfix_transport WHERE address='%s'