Mike Tunnicliffe

Add support for overriding settings per request

3

This commit adds `res.settings`, an object on to which properties can be defined that will override application settings within Express internals (the values returned from `app.get()` are not altered, therefore...

Document the fomat of the object returned by getEnvironment()

2

The README.md should describe (but currently doesn't) the keys / values available in the object returned by `getEnvironment()`.

Make req.route an object saving route and baseUrl

3

This PR attempts to implement https://github.com/expressjs/express/issues/2883. --- When using an error handler you have access to `req.route` which describes the most recently matched route. However, some other informaiton (like `req.baseUrl`)...