Set up an instance of Mastodon for Kosmos

Refs #19

Use new application cookbook, update our cookbooks

site-cookbooks/sockethub/templates/default/nodejs.systemd.service.erb

@@ -5,6 +5,7 @@ After=redis-server.service
 
 [Service]
 ExecStart=<%= @entry %>
+WorkingDirectory=<%= @app_dir %>
 User=<%= @user %>
 Group=<%= @group %>
 <% unless @environment.empty? -%>