[FIXED JENKINS-15576] Label's Load Statistics queue length based on
label assigned to job rather than to item in build queue.
Test cases for [FIXED JENKINS-15576]
Merge branch 'master' of https://github.com/laurence-h/jenkins.git
Merge remote-tracking branch 'upstream/master'

Conflicts:
	changelog.html
	test/pom.xml
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Small comment changes in LabelLoadStatisticsQueueLengthTest
Merge with changes from https://github.com/jenkinsci/jenkins/pull/742
Merge commit '16f2c7af0122a4f3cfd709bd44d9b5402a6ec8bf' into security
Updating branch base to 1.532.
Merge branch 'security' into security-rc

Conflicts:
	core/src/main/java/hudson/markup/MyspacePolicy.java
[FIXED JENKINS-20307] Consider OneOffExecutors in Run.getExecutor()
Enlarge and move Jenkins head icon

Enlarge and move Jenkins head image a bit to be flush with the bottom of
the header bar.
Refactor CSS (top > bottom align)

Refactor CSS to make header images relative to the bottom of the header
bar rather than relative to the top.
[FIXED JENKINS-24014] Make reverse proxy check tolerate ?auto_refresh
quote vs apostrophe issue in changelog
[FIXED JENKINS-24110] - Explicitly handle null Executables in hudson.model.Executor

This change improves the handling of errors in hudson.model.Executor, which cause issues like JENKINS-18164.
The change also introduces several annotations in order to prevent further issues.

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>
Should not exist; apparently added by mistake.
[FIXED JENKINS-24251] Do not issue bogus warning about missing default JDK.
[FIXED JENKINS-13709]

Integrating dom4j with the fix for java.lang.ClassCastException:
org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory

See: https://github.com/stapler/stapler/pull/36