Initial basic probably-inadequate DOS protection.

We disconnect any IP addresses that sends more than 50 requests in a
5-second window.
Merge pull request #10 from jeremybanks/disconnect-the-dangerous

 Disconnect IP addresses which are flooding requests/messages
update package.json.
move to #atp.
oops; got my package.json files mixed up.
it's amateur hour here; fix package.json.
Merge branch 'master' into new_IDs