Downgrade pom to kepler version

* The pom should reference the jbosstools parent pom of 4.1.2.Final which
  is consistent with the final release of the kepler repository

* Rather than using the downloaded TP that may not be up-to-date, reference
  the JBT-IS target platform directly using the parent pom's properties

* Adds in an ant-run plugin for echoing salient properties used in the
  build for easier understanding of what TP is being built against