cleanups, logging, and error propagation fixes

which aparently keeps running and does not sleep according to profiling.

     - Add persistent client key support to SOCKS IRC

    * Update: Select old update URL if no unpack200 available

      - Use new receivedAsReply flag in LeaseSet to mark
        those received as response to a query
      - Mark which methods in FloodfillPeerSelector may return
        our own hash
      - Redefine selectNearest() so it may return our own hash,
        so it can be used for closeness measurement
      - Redefine findNearestRouters() to return Hashes
        instead of RouterInfos
      - Fix LeaseSet response decisions for floodfills, based
        on partial keyspace and closeness measurements
      - List only count of published leasesets in netdb

      starting update - caused by refreshing summary bar
      (thx 'backup'!)

      causing frequent RouterInfo updates and incorrect
      addition of introducers, caused by config.jsp handling

      - More listing fixes (more thanks to 'backup')
      - Start end game a little sooner

      on Java 1.5
    * Remove jetty from updater - it's been in for a few
      releases, and i2psnark now has its own listHTML method

    Loading a class would be one of them!
    So we do a quick check first, If it bombs out, we delay and try again.
    If it bombs after that, then we throw the ClassNotFoundException.

      - Set classpath for specific client only, not for the whole JVM
      - Use ConfigDir() not AppDir()

This avoids an ArrayIndexOutOfBoundsException, which can eventually
cause the eepproxy to stop functioning.

      Enter b32 or b64 hash or dest into list box, and
      check enable for whitelist. Uncheck enable and enter
      i2cp.enableBlackList=true in advanced i2cp options for
      blacklist. Todo: make black/whitelists radio buttons.