Simplified POM dependencies dependencies

git-svn-id: https://svn.apache.org/repos/asf/cxf/fediz/trunk@1454490 13f79535-47bb-0310-9956-ffa450edef68
Fix NPE if user has no roles

git-svn-id: https://svn.apache.org/repos/asf/cxf/fediz/trunk@1454491 13f79535-47bb-0310-9956-ffa450edef68