JBIDE-18772 use consistent path for publishing snapshot builds
JBIDE-18772 use consistent path for publishing snapshot builds

JBIDE-18772 use builds/staging/RedDeer_master/all/repo/ for current Red Deer 0.8.0 nightly builds against Luna; later move to /mars/ path

externalize publishingPath so it can be passed in from Jenkins

jboss-reddeer/reddeer,djelinek/reddeer,djelinek/reddeer,jboss-reddeer/reddeer