Randomize service results

[jhmartin]

Consul returns http service calls in a consistent order, when 'usually' one doesn't want all clients to use the same instance. When requesting just one instance of a service, return a random instance from the list of results.

[pierresouchay]

If we implement that, we should take weights into account as well

[pierresouchay]

@jhmartin do you still need this? What about having a helper to randomize results?

[jhmartin]

I don't need it myself, but my concern is people will expect a round-robin behavior from this and get something else.

[pierresouchay]

Closing it for now, feel free to re-open if it is a real need