JBTIS-350 - update source bundles for bpel luna 1.0.4
use aerogear nightly site as input to JBT 4.2.1 (not the version from 4.2.0.Final)
release JBT 4.2.1.CR2 to QE
link to newer staging site
add latest JBT IS jar to jbosstools/discovery/staging/4.2.1.CR2