{
	"name": "fg/essence",
	"type": "library",
	"description": "Extracts informations about medias on the web, like youtube videos, twitter statuses or blog articles.",
	"version": "2.0.0",
	"authors": [{
		"name": "Félix Girault",
		"email": "felix.girault@gmail.com",
		"homepage": "http://www.felix-girault.fr",
		"role": "Developer"
	}],
	"keywords": [
		"embed",
		"oembed",
		"opengraph",
		"media"
	],
	"licence": "BSD-2-Clause",
	"homepage": "http://github.com/felixgirault/essence",
	"require": {
		"php": ">=5.4.0",
		"ext-curl": "*"
	},
	"autoload": {
		"psr-0": {
			"Essence": "lib/"
		}
	}
}

{
	"name": "fg/essence",
	"type": "library",
	"description": "Extracts informations about medias on the web, like youtube videos, twitter statuses or blog articles.",
	"version": "2.0.0",
	"authors": [{
		"name": "Félix Girault",
		"email": "felix.girault@gmail.com",
		"homepage": "http://www.felix-girault.fr",
		"role": "Developer"
	}],
	"keywords": [
		"embed",
		"oembed",
		"opengraph",
		"media"
	],
	"licence": "BSD-2-Clause",
	"homepage": "http://github.com/felixgirault/essence",
	"require": {
		"php": ">=5.4.0",
		"ext-curl": "*"
	},
	"autoload": {
		"files": [
			"lib/bootstrap.php"
		]
	}
}

Replace Composer autoloader with bootstrapper
Replace Composer autoloader with bootstrapper