Update Laravel4.md

This module will break acceptance tests in Laravel. The reason is this module put Laravel into the "Testing" environment, and during "testing" Laravel does not apply filters to routes. PhPBrowser provides enough functionality for acceptance tests, and you can actually do some workaround to force Laravel into a specific 'codeception' environment for acceptance testing against a SQLite database. I posted a guide on how to do that here: http://stackoverflow.com/q/21975982/1317935