Auto-cluster, ssl, new attributes

- combined cluster and default recipe into one; :cluster switch on and off
- added auto-clustering
- added ssl support
- added default user/pass control through attributes

rabbitmq/templates/default/rabbitmq.config.erb

@@ -0,0 +1,21 @@
+%%%
+%% Generated by Chef
+%%%
+
+[
+  {rabbit, [
+<% if node[:rabbitmq][:cluster] && node[:rabbitmq][:cluster_disk_nodes] -%>
+    {cluster_nodes, [<%= node[:rabbitmq][:cluster_disk_nodes].map{|n| "\'#{n}\'"}.join(',') %>]},
+<% end %>
+<% if node[:rabbitmq][:ssl] -%>
+    {ssl_listeners, [<%= node[:rabbitmq][:ssl_port] %>]},
+    {ssl_options, [{cacertfile,"<%= node[:rabbitmq][:ssl_cacert] %>"},
+                    {certfile,"<%= node[:rabbitmq][:ssl_cert] %>"},
+                    {keyfile,"<%= node[:rabbitmq][:ssl_key] %>"},
+                    {verify,verify_none},
+                    {fail_if_no_peer_cert,false}]},
+<% end %>
+    {default_user, <<"<%= node[:rabbitmq][:default_user] %>">>},
+    {default_pass, <<"<%= node[:rabbitmq][:default_pass] %>">>}
+  ]}
+].