Vendor the external cookbooks

Knife-Zero doesn't include Berkshelf support, so vendoring everything in
the repo is convenient again

cookbooks/composer/recipes/default.rb

@@ -0,0 +1,12 @@
+#
+# Cookbook Name:: composer
+# Recipe:: default
+#
+# Copyright (c) 2016, David Joos
+#
+
+include_recipe 'composer::install'
+
+if node['composer']['install_globally']
+  include_recipe 'composer::global_configs'
+end