Run in Java 6, Update to 1.532.1 parent, added extra metrics

Few changes made as described in title.

Main items are:
- Updated to run under Java 6
- upped the parent pom to be 1.532.1, therefore depends on Jenkins LTS 1.532.1?
- Update some of the logging to the Job console. Couple of typos and added extra wording to make more informative.
- Add the ability to have a "base name". So within the Manage Jenkins -> Configure  there's an option to set a "base queue name" which is prepended to every queue in a job. This stemmed from some of our teams having separate Jenkins instances, but sharing Graphite so wanting to easily separate metrics for each job per team.

- Also added boolean metrics of BUILD_FAILED (sends a 0 value) and BUILD_SUCCESSFUL(sends a 1). We  don't keep much job history in order to try and keep Jenkins streamlined.

Hope this is all OK... first Pull Request!

Cheers,
Johsh