dev

I find that we cannot use the OpenDHT directly, since we need to bring the Chord and the Wisconsin routing XML system into a uniform network environment; if we insist to use OpenDHT, that means we should use PlanetNet to simulate our system; but for better self-control of the project since it is still far from mature, I prefer to develop and debug locally; certainly, later we can populate the system by using OpenDHT or other more open testbed.