Jenkins maintenance Thursday 2019-04-11 @ ~1700 project time

I apologize for the short notice. Two new jenkins security vulnerabilities were announced yesterday and one of them, although not very alarming, is applicable to the DM jenkins instance.

The update is extremely low risk as the fix is to bump the core version patch level from .1 -> .2. The outage is expected to be only a few minutes.

The update is complete.