express gulp livereload taken from http://rhumaric.com/2014/01/livereload-magic-gulp-style/

gulpfile

var gulp = require("gulp");
var path = require("path");

var server = {
    port: 4000,
    livereloadPort: 35729,
    basePath: path.join(__dirname, "www"),
    _lr: null,
    start: function () {
        var express = require('express');
        var app = express();
        app.use(require('connect-livereload')());
        app.use(express.static(this.basePath));
        app.listen(this.port);
    },
    livereload: function () {
        this._lr = require('tiny-lr')();
        this._lr.listen(this.livereloadPort);
    },
    livestart: function () {
        this.start();
        this.livereload();
    },
    notify: function (event) {
        var fileName = path.relative(this.basePath, event.path);

        this._lr.changed({
            body: {
                files: [fileName]
            }
        });
    }
};

gulp.task("default", function () {
    server.livestart();

    gulp.watch("www/**/*.html", function (event) {
        server.notify(event);
    });
});