[services-ng] use mysqladmin to check mysql status in warden

Change-Id: I6d852ca45be9f694d1e4c777ed20b218c3ff0a30
[services-ng] postgresql backup supports multiple versions

Change-Id: Ia4c2eb53d789a15e3bae9eca316103f0e682d620
add job_cleaner process to cleanup services redis jobs

Change-Id: I4ec82e88a2c30c9652c5eda37391e3db2d632ee4
Merge "add job_cleaner process to cleanup services redis jobs"
Merge "[services-ng] postgresql backup supports multiple versions"
Merge "[services-ng] use mysqladmin to check mysql status in warden"