* I2NP:

- Earlier detection and better logging of
      truncated TunnelGatewayMessage and DatabaseStoreMessage
    - Fix and enhance UnknownI2NPMessage implementation
    - Don't deserialize or verify the checksum of the
      embeddedI2NP message in the TunnelGatewayMessage
      at the IBGW, just use UnknownI2NPMessage and pass it along,
      except if zero hop; Still to do: similar thing at OBEP
    - Round expiration times when converting to/from seconds for SSU
    - Cleanups and javadoc

router/java/src/net/i2p/data/i2np/TunnelDataMessage.java

@@ -22,7 +22,6 @@ import net.i2p.util.Log;
  *
  */
 public class TunnelDataMessage extends I2NPMessageImpl {
-    private Log _log;
     private long _tunnelId;
     private TunnelId _tunnelIdObj;
     private byte[] _data;
@@ -101,7 +100,6 @@ public class TunnelDataMessage extends I2NPMessageImpl {
 
     public TunnelDataMessage(I2PAppContext context) {
         super(context);
-        _log = context.logManager().getLog(TunnelDataMessage.class);
         setMessageExpiration(context.clock().now() + EXPIRATION_PERIOD);
     }