Wrap all Localities in LocalityStack

[andrew2net]

As @opoudjis demands we need to wrap Localities in LocalityStack.

[opoudjis]

I don't think things will break if you don't, but I haven't confirmed. Rhere's a reason I asked for it, I think life will be more straightforward.

[ronaldtse]

I take the blame as my demand that all localities be wrapped in LocalityStack 😉 .