connectionloss - add more documentation to detail

discussion with user, this should be better documented:
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There are basically 2 cases where you can see connectionloss:

1) you call an operation on a session that is no longer alive

2) you are disconnected from a server when there are pending async operations to that server (you made an async request which has not yet completed)

Patrick

Kevin Burton wrote:
> Can this be thrown when using multiple servers as long as > 1 of them is
> online?
> Trying to figure out of I should try some type of reconnect if a single
> machine fails instead of failing altogether.
>
> Kevin
>