switch jenkins mvn to use --fail-at-end
switch jenkins mvn to use --fail-at-end

Typically expect things to work since they passed the git j8 pull check.
We seem to see a variety of transient (I think test host load releated)
failures.  With fail-at-end maybe we can at least get a better sense of
the magnitude of this.
queeniema/incubator-edgent,dlaboss/incubator-edgent,dlaboss/incubator-edgent,queeniema/incubator-edgent,queeniema/incubator-edgent,dlaboss/incubator-edgent,queeniema/incubator-edgent,dlaboss/incubator-edgent