allow @WithPlugin to install multiple plugins

[FIXED JENKINS-31321] protect against node-rename corruption

[FIX JENKINS-32194] Add time zone to generation date in footer

[JENKINS-30395] Work around ClosedByInterruptException in JenkinsRule

[JENKINS-31932] avoid synchronization for Jenkinsget/setJDKs

IdleOfflineCause changelogs and @since

[FIXES JENKINS-31932]

Documenting IllegalStateException from PosixAPI

create a specific implementation for Idle Offline Cause

This change adds code to check that the user isn't attempting to rename
an existing node with the name of another existing node.  Previous to
this change, such rename operations would succeed and would corrupt node
configuration data.

Specify --webroot to the Windows service wrapper

Docker images and other automation use cases often want to make Jenkins
use specific port. Today they do this via init.groovy.d with a
problematic sleep timeout, so allow them to control this value via
system property.

[FIX JENKINS-11016] Add button that allows retrying core update

[FIXED JENKINS-31219] A CloudProvisioningListener can prevent provisi…

[FIXED JENKINS-31954] Stack overflow reconfiguring some settings where Descriptor.newInstance is gratuitously overridden.

Ensure that no warnings appear during startup