Vendor the external cookbooks

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

cookbooks/elasticsearch/metadata.rb

@@ -0,0 +1,25 @@
+# Encoding: utf-8
+name             'elasticsearch'
+maintainer       'Karel Minarik'
+maintainer_email 'karel.minarik@elasticsearch.org'
+license          'Apache-2.0'
+description      'Installs and configures Elasticsearch'
+long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
+version          '4.2.0'
+
+supports 'amazon'
+supports 'centos'
+supports 'debian'
+supports 'fedora'
+supports 'redhat'
+supports 'ubuntu'
+
+depends 'apt'
+depends 'yum'
+depends 'chef-sugar'
+depends 'ark'
+
+issues_url       'https://github.com/elastic/cookbook-elasticsearch/issues'
+source_url       'https://github.com/elastic/cookbook-elasticsearch'
+
+chef_version '>= 12.5' if respond_to?(:chef_version)