bugfixes for autodetection/update of IP address

...va/src/net/i2p/router/transport/CommSystemFacadeImpl.java

...r/java/src/net/i2p/router/transport/TransportManager.java

...a/src/net/i2p/router/transport/tcp/ConnectionBuilder.java

...a/src/net/i2p/router/transport/tcp/ConnectionHandler.java

router/java/src/net/i2p/router/transport/tcp/TCPAddress.java

...er/java/src/net/i2p/router/transport/tcp/TCPListener.java

...r/java/src/net/i2p/router/transport/tcp/TCPTransport.java