Minor updates to improve resilience
Minor updates to improve resilience

* Include short and long repository names in all_repositories.

* Increase maximum spot price, multiplier, and missing_timeout.

* Prioritize BUILD vs TEST builders when starting latent slaves.

* Never merge builds for the TEST builders.

* Treat checkstyle warning and overall build failures.

Signed-off-by: Brian Behlendorf <32d50ad1e384dcb9a5bf7e40fa470df5dabaf348@llnl.gov>

zfsonlinux/zfs-buildbot,gmelikov/zfs-buildbot,zfsonlinux/zfs-buildbot,gmelikov/zfs-buildbot