JBIDE-16368 add profile to allow -Djbosstools-target-site= to point at a specific (or locally built) target platform when building agg sites
JBIDE-16368 externalize property jbosstools-target-site = http://download.jboss.org/jbosstools/targetplatforms/jbosstoolstarget/luna/ so generated site can point to a local target platform if desired
JBIDE-16368 externalize property jbosstools-target-site = http://download.jboss.org/jbosstools/targetplatforms/jbosstoolstarget/luna/ so generated site can point to a local target platform if desired