Switch from Illuminate/Html to Collective/Html

[kohenkatz]

According to the Laravel 5.0 Upgrade Guide, it is preferable to use laravelcollective/html instead of the old illuminate/html, because the latter has been deprecated and the former is still maintained. As far as I can tell, the LaravelCollective version is a completely drop-in replacement (just change composer.json and the provider/aliases in config/app.php.

I think that Tutorials 3 and 4 should be updated to use this version instead of the old deprecated one.