Use FQDN in downburst yaml.

As newer rhel's like to default to localdomain screwing with things
if its not set. Older cloud-init/distros appear to just ignore the
domain.

Signed-off-by: Sandon Van Ness <sandon@redhat.com>
fixed broken links to worker_start.sh and create_nodes.py

Signed-off-by: Andrew Schoen <aschoen@redhat.com>
Merge pull request #385 from andrewschoen/run-test

a test to make sure that fake_ctx has everything it needs in teuthology.run
Merge pull request #383 from ceph/wip-downburst-fqdn

Use FQDN in downburst yaml.
Merge pull request #384 from andrewschoen/doc-tweaks

fixed broken links to worker_start.sh and create_nodes.py in the docs
ensures owner and machine_type are added to fake_ctx with the correct values if they're missing from args

Signed-off-by: Andrew Schoen <aschoen@redhat.com>