applied ryan's patch for type-aware deepcopy
avoiding needing to serialize member fields of writers

git-svn-id: https://svn.apache.org/repos/asf/incubator/streams/branches/STREAMS-26@1572379 13f79535-47bb-0310-9956-ffa450edef68
Added public static IDs to assist stream builders

git-svn-id: https://svn.apache.org/repos/asf/incubator/streams/branches/STREAMS-26@1572412 13f79535-47bb-0310-9956-ffa450edef68