JBDS-2623 add missing IU org.aopalliance
apply https://github.com/jbosstools/jbosstools-discovery/pull/55 and https://github.com/jbosstools/jbosstools-discovery/pull/56 in 4.1.x
JBDS-2724 rename Testing to Utilities in order to be able to include Mylyn Builds Connector for Jenkins
update testing instructions, fix links to Central TP (Extras Site) [JBDS-2623], bump to latest parent pom