Add type 'project' to composer.json

That is what is suggested by https://getcomposer.org/doc/04-schema.md#type

composer.json

@@ -3,6 +3,7 @@
 	"description": "The Laravel Framework.",
 	"keywords": ["framework", "laravel"],
 	"license": "MIT",
+	"type": "project",
 	"require": {
 		"laravel/framework": "4.2.*"
 	},