Added composer.json file

{

	"name": "humanmade/s3-uploads",

	"description": "WordPress plugin to store uploads on S3",

	"homepage": "https://github.com/humanmade/S3-Uploads",

	"keywords": [

		"wordpress"

	],

	"license": "GPL-2.0+",

	"authors": [

		{

			"name":"Human Made Limited",

			"email":"support@humanmade.co.uk",

			"homepage":"http://hmn.md/"

		}

	],

	"support"    : {

			"issues": "https://github.com/humanmade/s3-uploads/issues",

			"source": "https://github.com/humanmade/s3-uploads"

	},

	"type": "wordpress-plugin",

	"require": {

		"composer/installers": "~1.0"

	 }

}