Allowing options.locals to be specified to pass in parameters for vie…

[engineersamuel]

I was attempting to integrate react-starter (webpack) + marty isomorphism and needed to pass various parameters to the view engine (ejs) however the current build hardcoded the starting locals as {}. This will allow passing options like so (based on the martyjs ex):

    app.use(require('marty-express')({
        routes: require('../app/routes'),
        application: require('../app/application'),
        locals: {
            SCRIPT_URL: scriptUrl
        },
        rendered: function (result) {
            console.log('Rendered ' + result.req.url);

            var table = new Table({
                colWidths: [30, 30, 30, 30, 40],
                head: ['Store Id', 'Fetch Id', 'Status', 'Time', 'Result']
            });

            _.each(result.diagnostics, function (diagnostic) {
                table.push([
                    diagnostic.storeId,
                    diagnostic.fetchId,
                    diagnostic.status,
                    diagnostic.time,
                    JSON.stringify(diagnostic.result || diagnostic.error || {}, null, 2)
                ]);
            });

            console.log(table.toString());
        }
    }));

Where the index.ejs contains:

    <script type="text/javascript" src="<%- SCRIPT_URL %>"></script>

In this instance the SCRIPT_URL is generated by webpack hot dev mode:

    var scriptUrl = publicPath + [].concat(stats.assetsByChunkName.main)[0];

Also adding an ability to pass a blacklist of regular expressions for things such as API. It is very basic, feel free to improve upon it, but just an array over /something/.test(req.url)