[JENKINS-10502] Option to make the build NOT fail if there is nothing to archive
fixed compilation error
Backwards compatibility added. Added allowEmptyArchive test
Comment only.
Do not set a 10-sec timeout in the build(FreeStyleProject) method.
Generally the environment is responsible for imposing a general timeout on tests.
And this timeout makes debugging more difficult.
[FIXED JENKINS-2058] Fail the build if artifact archiving fails with an IOException.
allowing subtype to create its own XStream

based on the conversation with Weltraumschaf (the DARCS plugin maintainer)
Added help-allowEmptyArchive.html. Did some cleanup in ArtifactArchiver and config.jelly
[FIXED JENKINS-17177] wrong build result in post build steps after failed pre build step in maven project
[maven-release-plugin] prepare release jenkins-1.506
[maven-release-plugin] prepare for next development iteration
updated changelog for release
updated changelog as a part of the release
merged back the RC branch
creating an RC branch
the trunk is toward 1.508-SNAPSHOT
JUnit 4.
Merge pull request #732 from pjrt/JENKINS-10502

[FIXED JENKINS-10502] Option to make the build not fail if there is nothing to archive
Merge branch 'master' of github.com:jenkinsci/jenkins
[JENKINS-10502] Noting.