Exposing Request object in logger

[busslina]

It exposes the Request object into logRequests's optional logger. It can be useful for example to print the IP, ...

The Response object could be also exposed, but I didn't need it for now.

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[busslina]

Seems this new logger signature is breaking some "things" so I will revert it and use Zone instead.

I don't like to use Zone if not needed but...

I have bad memories with python's Flask with a similar mechanism.