OOZIE-1471 Support glob in FS action and prepare blocks (ryota)

git-svn-id: https://svn.apache.org/repos/asf/oozie/trunk@1511607 13f79535-47bb-0310-9956-ffa450edef68
OOZIE-1443 forkjoin validation should not allow a fork to go to the same node multiple times (rkanter)

git-svn-id: https://svn.apache.org/repos/asf/oozie/trunk@1512024 13f79535-47bb-0310-9956-ffa450edef68