Composer support for 3scale

composer.json

{
    "name": "3scale/3scale_ws_api_for_php",
    "description": "3scale integration plugin for PHP applications - with composer.json",
    "keywords": ["3scale", "ThreeScale", "api", "php", "composer"],
    "type": "library",
    "homepage" : "https://support.3scale.net/libraries",
    "require": {
        "php": ">=5.3"
    },
    "autoload": {
        "psr-0": {
            "ThreeScaleClient": "lib/" ,
            "ThreeScaleResponse": "lib/" ,
            "3ScaleClient": "lib/"
        }
    }
}