Support the new Always trigger type.

Support for this trigger was added in email-ext v2.36.

See https://issues.jenkins-ci.org/browse/JENKINS-20013 for more
details.

Change-Id: Ibfb3ec96218fc7133439e17853638593fed41a44
Add workspace scm

Add support for the 'Clone Workspace SCM' plugin that allows to use the workspace
of a project as the SCM of an other project.

Change-Id: I8467ace24665855dab606d6e52a1c130cd2929af
Merge "Add workspace scm"
Merge "Support the new Always trigger type."