Fix to bug #562, http://bugs.mariadb.com/show_bug.cgi?id=562
mysql_client.c, added functions create_auth_fail_str, and get_username_from_auth to implement creation of similar error msg with MySQL. There is one difference left, because MaxScale prints IP address instead of hostname in error message.
Merge branch 'develop' of https://github.com/mariadb-corporation/MaxScale into develop
Fixed the fix: invalid packet test removed.