To get the latest version of SQLView, simply require "thibaud-dauce/sqsl-view": "0.*" in your composer.json file. You'll then need to run composer install or composer update to download it and have the autoloader updated.
Once SQLView is installed, you need to register the service provider. Open up app/config/app.php and add the following to the providers key.
You can register the SQLView facade in the aliases key of your app/config/app.php file if you like.