Connect timeout defaults to 10 seconds, not indefinite

[djones6]

The documentation for HTTPClient.Configuration.timeout suggests that the default behavior is not to time out.

However, in practice the client will produce a NIO.ChannelError.connectTimeout(.nanoseconds(10000000000)) - ie. 10 seconds - by default if the connection is not accepted within that time.

Setting this to a larger (or smaller) value does seem to work however.

[Lukasa]

We should probably clean up the documentation. Defaulting to no timeout is a bad idea, IMO, but we should definitely clearly say what the actual behaviour is.