#93 Dispatcher: Round-Robin should support weights

[Ryan Bullock]

The round-robin algorithm for the dispatcher module currently does not support weights. Instead you have to add multiple entries for the same gateway in order to get the same effect. This doesn't scale very if you have several gateways in a group that require different weightings, and makes changing weights more difficult.

The other issue is that the documentation does not mention that weight does not affect round-robin (found this information on the original introduction of weights for dispatcher) and I believe that weighted round-robin is a common enough of a concept that most people would expect it to work that way.

Thanks for your time.