* SessionKeyManager, OCMOSJ, Garlic:

      - Enable per-client SessionKeyManagers for better anonymity
      - tagsDelivered() now means tags are sent, not acked.
      - OCMOSJ uses the new TagSetHandle object returned from tagsDelivered()
        to call tagsAcked() or failTags() as appropriate.
      - Assume tags delivered on an established session to
        reduce streaming lib stalls caused by massive tag deliveries;
        should increase throughput and window sizes on long-lived streams
      - Unacked tagsets on a new session are stored on a separate list
      - Don't kill an OB Session just because it's temporarily out of tags
      - Increase min tag threshold to 30 (was 20) due to new speculative
        tags delivered scheme, and to increase effective max window
      - More Java 5 and dead code cleanups, and more comments and javadoc,
        debug logging cleanups