RE: T2 Clarify TimeToLive

Almost. I think that really it should be ...

	TimeToLive
>  Sum Of [SendTime + (Retries * RetryInterval)] over
all hops + some percentage

As you cannot always know how many hops there will be nor how fast each hop
would be, you really should make TimeToLive a lot more than the figure
above. In practice, I think that feedback from actual use is likely to be
the most effective way to work out the values to use.

David