Extract message system to plugin.

lib/foodsoft_messages/app/views/messages/_messages.html.haml

@@ -0,0 +1,14 @@
+- if pagination
+  - if Message.public.count > 20
+    = items_per_page
+  = pagination_links_remote messages
+
+- unless messages.empty?
+  %table.table.table-striped
+    %tbody
+      - for message in messages
+        %tr
+          %td= format_subject(message, 130)
+          %td= h(message.sender_name)
+          %td= format_time(message.created_at)
+          %td= link_to t('.reply'), new_message_path(:message => {:reply_to => message.id}), class: 'btn'