Support rebuild plugin

Rebuild-plugin 1.21 provides an extension point for other plugins: [JENKINS-19843 Adding option to extend the rebuild to other parameters types] (https://issues.jenkins-ci.org/browse/JENKINS-19843) .

Instructions to introduce rebuild-plugin support: https://github.com/jenkinsci/rebuild-plugin/blob/master/src/main/java/com/sonyericsson/rebuild/RebuildParameterProvider.java#L33