composer.json

{
	"name": "laravel/laravel",
	"description": "The Laravel Framework.",
	"keywords": ["framework", "laravel"],
	"license": "MIT",
	"require": {
		"laravel/framework": "4.1.*",
		"way/generators": "dev-master",
		"cartalyst/sentry": "2.0.*",
		"jasonlewis/basset": "dev-master",
		"fzaninotto/faker": "dev-master"
	},
  "extra": {
    "heroku": {
      "framework": "silex",
      "document-root": "public",
      "index-document": "index.php"
    }
  },
	"autoload": {
		"classmap": [
			"app/commands",
			"app/controllers",
			"app/models",
			"app/database/migrations",
			"app/database/seeds",
			"app/tests/TestCase.php"
		]
	},
	"scripts": {
		"post-install-cmd": [
			"php artisan optimize",
      "chmod -R 777 app/storage"
		],
		"post-update-cmd": [
			"php artisan clear-compiled",
			"php artisan optimize"
		],
		"post-create-project-cmd": [
			"php artisan key:generate"
		]
	},
	"config": {
		"preferred-install": "dist"
	},
	"minimum-stability": "dev"
}

one thing to note, you should delete the composer.lock from the .gitignore file ..
this is the only way which make the app deployed to the server