Mixing in static context into req's context

[aljimenez]

This pull requests makes the static context available in the req's context, giving the req's context precedence as brought up in issue #1377.

[yahoocla]

CLA is valid!

[caridy]

I thought this was done internally whenever you try to use that context to access data from the store.

[drewfish]

It is, inside the store. However, req.context doesn't have it, so it's not possible to write other middleware that uses req.context to do interesting things.

[caridy]

fair enough.