Vendor the external cookbooks

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

cookbooks/poise-service/templates/default/systemd.service.erb

@@ -0,0 +1,14 @@
+[Unit]
+Description=<%= @name %>
+
+[Service]
+Environment=<%= @environment.map {|key, val| %Q{"#{key}=#{val}"} }.join(' ') %>
+ExecStart=<%= @command %>
+ExecReload=/bin/kill -<%= @reload_signal %> $MAINPID
+KillSignal=<%= @stop_signal %>
+User=<%= @user %>
+WorkingDirectory=<%= @directory %>
+Restart=<%= @restart_mode %>
+
+[Install]
+WantedBy=multi-user.target