Hooked up server to suicide if clock offset is too great

Disable offset checking if the maxOffset is set to 0

Rename all instances of Drift to Offset

Note that I switched to Marzullo's algorithm from the intersection algorithm, which still works I can still test that the interval was defined by a majority of clocks.
It is! The NTP intersection algorithm is based off of this. They adapted it so that their version would sometimes return a larger interval. With the larger interval they can use statistical techniques that reduce jitter during synchronization -- but since we aren't synchronizing we don't have to worry about jitter. Furthermore, the smaller interval is a more precise estimate of the offset, which is better for us.