2005-08-24 jrandom

    * Catch errors with corrupt tunnel messages more gracefully (no need to
      kill the thread and cause an OOM...)
    * Don't skip shitlisted peers for netDb store messages, as they aren't
      necessarily shitlisted by other people (though they probably are).
    * Adjust the netDb store per-peer timeout based on each particular peer's
      profile (timeout = 4x their average netDb store response time)
    * Don't republish leaseSets to *failed* peers - send them to peers who
      replied but just didn't know the value.
    * Set a 5 second timeout on the I2PTunnelHTTPServer reading the client's
      HTTP headers, rather than blocking indefinitely.  HTTP headers should be
      sent entirely within the first streaming packet anyway, so this won't be
      a problem.
    * Don't use the I2PTunnel*Server handler thread pool by default, as it may
      prevent any clients from accessing the server if the handlers get
      blocked by the streaming lib or other issues.
    * Don't overwrite a known status (OK/ERR-Reject/ERR-SymmetricNAT) with
      Unknown.