Introduce ModifiableViewGroup
[FIXED JENKINS-18410] AbstractTestResultAction should be a RunAction2 so it need not persist its owning build.
[FIXED JENKINS-20951] XmlFile.read/unmarshal needs to catch general XStreamException so as to include CannotResolveClassException, thrown when a TopLevelItem provided by a plugin is unloadable.
Merge branch 'master' of git://github.com/jenkinsci/jenkins
Merge branch 'master' of git://github.com/jenkinsci/jenkins
[JENKINS-20951] [JENKINS-18410] Did not make it into 1.544 due to validated merge holdups (mostly randomly failing tests, sigh).
Merge pull request #1032 from olivergondza/modifiable-view-group

Introduce ModifiableViewGroup
[JENKINS-10615] AbstractProjectTest.testWorkspaceLock frequently fails on jenkins.ci due to InterruptedException in HudsonTestCase.setUp.
Possibly because it is sorted after [JENKINS-15156] testGetBuildAfterGC and the test suite times out.
Merge commit '85e9e126773c0bb20a8529a2e6591dde17d7e209'
JENKINS-20857 - Add some null checks to RunParameterValue
Merge branch 'JENKINS-20857' of https://github.com/gcummings/jenkins into JENKINS-20857