This pull request is based off this GitHub PR (https://github.com/jenkinsci/log-parser-plugin/pull/13) and it adds support for parsing arbitrary status in parse rule file. To clarify, the parse file can now contain any status other than ok/error/warn/info/start, such as jenkins, or cobertura. It will then identify such extra status and put them in the left column of the UI as well. Please see the attached screenshot, as well as the ARB_TAGS_CHANGES.md file on the GitHub PR (https://github.com/jenkinsci/log-parser-plugin/pull/14) for more detailed code changes.