Vendor the external cookbooks

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

cookbooks/postfix/templates/default/access.erb

@@ -0,0 +1,9 @@
+#
+# Auto-generated by Chef. Do not hand edit!
+# Local modifications will be overwritten.
+#
+# See man 5 access for format
+
+<% node['postfix']['access'].each do |name, value| %>
+<%= name %> <%= value %>
+<% end unless node['postfix']['access'].nil? %>