multijob: added kill-phase-on option

this option allows terminate job phase on specific status of job

Change-Id: I5984fb2494120afc97140c1ae38635301e8f1376
Signed-off-by: Lukas Bednar <lbednar@redhat.com>
Document the Zuul triggers

The zuul and zuul-post had sparse documentation, improve it a bit and
point to upstream documentation at:
http://ci.openstack.org/zuul/launchers.html#zuul-parameters

Add a note that Zuul 2.0 (gearman based) no longer requires those
parameters to be explicitly defined.

Change-Id: I1edcd5c3a101e2afe0025ad4cd3e511582998999
Change default Reply-To header to $DEFAULT_REPLYTO.

See also https://issues.jenkins-ci.org/browse/JENKINS-17733.

Change-Id: I97c2f2824a8fa74f6387301d29594c59cd73a45a
Closes-Bug: 1290382
Add support for Managed Script Plugin

https://wiki.jenkins-ci.org/display/JENKINS/Managed+Script+Plugin

Change-Id: Ic37f02886f242f5ff31a7421e699b85227c5264f
Merge "Document the Zuul triggers"
Merge "multijob: added kill-phase-on option"
Merge "Change default Reply-To header to $DEFAULT_REPLYTO."
Merge "Add support for Managed Script Plugin"