Fix Version/s: None
There are two tags used by the qserv team: "qserv_latest" and "qserv-dev". The invariant of these tags should be:
qserv-dev >= qserv_latest
That is, qserv-dev should never be left behind when qserv_latest is moved/updated, else much mayhem may ensue.
To avoid mistakes/trouble, we should only retain the two jenkins jobs in qserv/release which:
1) advance both qserv-dev and qserv_latest simultaneously
2) advance qserv-dev on its own