Vendor the external cookbooks

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

cookbooks/elasticsearch/templates/default/elasticsearch.yml.erb

@@ -0,0 +1,8 @@
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+# THIS FILE IS MANAGED BY CHEF, DO NOT EDIT MANUALLY, YOUR CHANGES WILL BE OVERWRITTEN!
+#
+# Please see the documentation for further information on configuration options:
+# <https://www.elastic.co/guide/en/elasticsearch/reference/current/settings.html>
+#
+<% require 'yaml' %>
+<%= @config.to_yaml.to_s %>