[fixed JENKINS-7285] Use build parameters in combination filters

Based on the work of Michael Elkin [1].

[1] https://issues.jenkins-ci.org/secure/attachment/20588/0001-tag-1.414-for-parameters-in-multiconfig-filters.patch
Merge pull request #584 from olivergondza/parametrized-filter

Use build parameters in combination filters
fixed i18n. use Localizable object.
creating an RC branch
the trunk is toward 1.516-SNAPSHOT
typo
expose the submitted file name
changelog: this issue is a rfe not a bug
Try harder to set Jenkins root URL, since some tests rely on it.
JUnit 4.
Missing equals/hashCode/toString impls for CopyOnWriteMap.
[FIXED JENKINS-17933] Catch errors in init.groovy.
JUnit 4.
[FIXED JENKINS-17935] NPE from Run.getDynamic when a transient build action is invisible.
Amends lvotypko’s 33e0df7 to be as careful as bdff425 + f65da7f + 10e9b00 for persistent actions.
[FIXED JENKINS-16652] Use UpdateSite.Plugin.deploy from PluginManager.doUploadPlugin.
Merge branch 'master' of https://github.com/jenkinsci/jenkins
Update changelog, should have been updated with original merge in to 1.515