Convert MySqlNode from groovy to java
* fixed (hopefully) the strange integration test issue where login fails on 'any' domain
* upgraded to mysql 5.5.30
Fix MySqlNode.service_up

- use `mysqladmin status` call to determine if up
- exposed password and socketUid as attributes
Merge pull request #558 from aledsage/fix/MySql-seviceUp

Fix MySql sevice up
Merge pull request #560 from pveentjer/mysql-integrationtest-fix

* fixed (hopefully) the strange integration test issue where login fails...