Code review comment for lp:~al-maisan/launchpad/oops-526969

Hello,

since the build farm was generalized the binary builds became somewhat
schizophrenic.
In order to figure out whether a dispatch time estimate is available for a
build we now need to look at

    Build.buildstate *and* Job.status

These need to carry the values BuildStatus.NEEDSBUILD and JobStatus.WAITING
respectively.

The branch at hand revises the main build template to do so.

Tests to run:

    bin/test --v -t build-views -t xx-build-record

No "make lint" changes or errors.