save peers to a database, so you don't ping them every time you run sendGraph.py

[cyisfor]

I noticed sendGraph.py goes and uses 8 threads to hammer as many peers as possible demanding their peer lists. So, I made a thing that waits an hour before checking a peer a second time. As an added bonus it saves all the reported peers over all runs of the program, so you can get a more comprehensive map, even without sending it to the fc00 server. I worked for the last 7 hours straight on this... without a break, so I'm not gonna work on it anymore. Don't merge it or whatever, or use stuff in it as you like, but it still needs some cleanup before it's exactly like sendGraph.py.