Packagist/Composer Setup

I'd like to get this package on Packagist/Composer, but don't know all the steps. I did some work in the `packagist-setup` branch and got it onto Packagist, but the `composer require` command didn't work too great, and the setup phase is awful. I need to figure out an easy way to get the user to have the `app`, `init.php`, etc. folders/files after the `composer require` step, and I'm not sure how to do that. I also want to warn the user if those files already exist so that they can fix things manually. Then, I need to figure out if things work. In my one test locally using `composer require`, I got the files to copy properly, but then the autoload wasn't working properly, and I don't know why.