Load official pchart with composer

composer.json

 {
"name": "sample/sample-app",
"description": "How to add pchart to your application via composer",
"license": "GPLv3",
"repositories": [
    {
        "type": "package",
        "package": {
            "name": "pchart/pchart",
            "version": "2.1.4",
            "dist": {
                "url": "http://www.pchart.net/release/pChart2.1.4.tar.gz",
                "type": "tar"
            },
            "autoload": {
                "classmap": [
                    "class/"
                ]
            }
        }
    }
],
"require": {
    "pchart/pchart": "2.1.4"
}
}

There are about a dozen pchart forks on the packagist and none of them are the official pchart library.
Add this repository and require clause to your composer.json, and it will pull in and autoload the official pchart library.