added twitter4j

git-svn-id: https://svn.apache.org/repos/asf/incubator/streams/branches/sblackmon@1566212 13f79535-47bb-0310-9956-ffa450edef68
implemented TwitterTimelineProvider


git-svn-id: https://svn.apache.org/repos/asf/incubator/streams/branches/sblackmon@1566213 13f79535-47bb-0310-9956-ffa450edef68