[JENKINS-21631] - Don't fail with NPE if the PeepholePermalink cache contains the non-numeric value.

Actually, the change just prevents symptoms. There should be an error somewhere else.

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>
(cherry picked from commit 5df3f74b4e7700d5f51243ced4c97fdc209c6fb2)
[FIX JENKINS-16264] Don't advertise POSTing config.xml on master

(cherry picked from commit af67ae868e0d150e4d73e48a301c831bc2732b0c)
Remove NoExternalUse Restrictions on SecurityListener methods.

Plugins like github-oauth-plugin implementing SecurityRealm need to call
these methods in security lifecycle events.

(cherry picked from commit 65b7d8a71cd3e4b8c3eb378b4c063e580f821a42)
[FIXED JENKINS-23417] Noting merge of #1277.

(cherry picked from commit 6dd071eaa8dd20ac6734d1b54e05d0a4adb7599f)

Conflicts:
	changelog.html
[JENKINS-23417] Noting new api members is stable branch
[FIX JENKINS-22617] Fix path to deletion of VM error log

(cherry picked from commit b517eb7925a0ac50bf499d30732b986efbf6d276)
[JENKINS-23191] Cannot reproduce problem in HtmlUnit test, but can at least guard against other regressions.
(cherry picked from commit e1e7f1b93b48998e1068275c6406335e7b7f364d)
[FIXED JENKINS-23191] f:radio is not databinding-aware and does not correctly handle multiple configuration sections unless you make it.
(cherry picked from commit d660d60ea7e2e411972b215fc7f6fee9ff03e329)

Conflicts:
	changelog.html
[FIXED JENKINS-14264] For logs >200Kb, just show two <t:task>s without nesting, for proper interoperability with the context menu.
(cherry picked from commit 87e2d32faa4f4de9793c7cfcdc365baceedb0411)

Conflicts:
	changelog.html
[JENKINS-14264] Factor out console-link.jelly for ease of reuse from other run types with logs.
(cherry picked from commit 9404759d0d76951372688c02100fbfc5f383ff6d)
[FIXED JENKINS-23517] InstallerTranslator should gracefully ignore offline slaves.
(cherry picked from commit 3e44e1365e0d20ac77c914c3372767182735f616)

Conflicts:
	changelog.html
[JENKINS-23627] Restrict access to admin monitor info page

This could contain sensitive information in the list of solutions
provided. It also shows the path to JENKINS_HOME, exposing OS and
configuration information.

(cherry picked from commit 97c90ace15964143aa266da23c9c18de704bb3ad)
Integrating a new version that supports multiple issue trackers

(cherry picked from commit 9ce6b0fec3c0a0f1b9ea786865b2130a900a5886)