Updated Laravel .gitignore

Laravel suggests to add the .env.php (and .env.local.php) files to the gitignore as they are used for 'sensitive configuration' :  [Laravel Documentation](http://laravel.com/docs/configuration#protecting-sensitive-configuration) 

The /bootstrap/compiled.php file should also be added in the gitignore (caching stuff, double check in [Laravel official gitignore](https://github.com/laravel/laravel/blob/master/.gitignore) , you'll see it's there)