Adding CardBoardFish PHP Api as stand-alone library to Laravel 5.1 Project

Hello.

I'm a little new to php and laravel, so maybe it could sounds easy to any but it is not for me :)

I'm trying to integrate the CardBoardFish PHP Api (Which is composed for 3 files https://github.com/XSkinner/card-board-fish ) to my app and make it works, but i dont really get how to integrate an external library and use it.

I saw a post here which helped me a bit but i cant make it to work.

Thank you in advanced