Rename messages#read to #show

Also rename the named path, to align with resourceful routing

app/views/messages/_message_summary.html.erb

@@ -1,6 +1,6 @@
 <tr id="inbox-<%= message_summary.id %>" class="inbox-row<%= "-unread" if not message_summary.message_read? %>">
   <td class="inbox-sender"><%= link_to h(message_summary.sender.display_name), user_path(message_summary.sender) %></td>
-  <td class="inbox-subject"><%= link_to h(message_summary.title), read_message_path(message_summary) %></td>
+  <td class="inbox-subject"><%= link_to h(message_summary.title), message_path(message_summary) %></td>
   <td class="inbox-sent"><%= l message_summary.sent_on, :format => :friendly %></td>
   <td class="inbox-mark-unread"><%= button_to t('.unread_button'), mark_message_path(message_summary, :mark => 'unread'), { :remote => true } %></td>
   <td class="inbox-mark-read"><%= button_to t('.read_button'), mark_message_path(message_summary, :mark => 'read'), { :remote => true } %></td>

app/views/messages/_sent_message_summary.html.erb

@@ -1,6 +1,6 @@
 <tr class="inbox-row">
   <td class="inbox-sender"><%= link_to h(sent_message_summary.recipient.display_name), user_path(sent_message_summary.recipient) %></td>
-  <td class="inbox-subject"><%= link_to h(sent_message_summary.title), read_message_path(sent_message_summary) %></td>
+  <td class="inbox-subject"><%= link_to h(sent_message_summary.title), message_path(sent_message_summary) %></td>
   <td class="inbox-sent"><%= l sent_message_summary.sent_on, :format => :friendly %></td>
   <td class="inbox-destroy"><%= button_to t('.destroy_button'), destroy_message_path(sent_message_summary, :referer => request.fullpath) %></td>
 </tr>