Re-Implemented DGW
cleanup
Merge pull request #2 from f0o/master

Re-Implemented DGW
Proof of working:
```text
        "addr" : "83.x.x.x:38497",
        "blocksrequested" : 57032,
        "version" : 70003,
        "addr" : "79.x.x.x:38151",
        "blocksrequested" : 4006,
        "version" : 70003,
```