Update documentation for Express version 4

[adonomay]

The readme instructs developers to pass express to connect-tedious:

var express = require('express');
var TediousStore = require('connect-tedious')(express);

In version 4.x, Express removed all built-in middleware from its core except express.static. So the documentation should read:

var express = require('express');
var session = require('express-session');
var TediousStore = require('connect-tedious')(session);

Not sure if you still want to support Express 3 -- at the very least include a note in the readme about Express 4 and express-session?

[mcartoixa]

Thanks for the feedback. We support both frameworks (at least for now) but I will update the documentation as you suggest.
I will close the issue when the next version is released (nothing planned yet).

[mcartoixa]

Landed in version 1.0.0