/notes: default to listing notes, not posts. Remove group_by=post.

The posts listing is replaced by a link to order:note.

app/views/notes/index.html.erb

@@ -0,0 +1,39 @@
+<div id="c-notes">
+  <div id="a-index">
+    <h1>Notes</h1>
+
+    <table width="100%" class="striped">
+      <thead>
+        <tr>
+          <th>Post</th>
+          <th>Created by</th>
+          <th>Created at</th>
+          <th>Body</th>
+        </tr>
+      </thead>
+      <tbody>
+        <% @notes.each do |note| %>
+          <tr>
+            <td><%= link_to note.post_id, post_path(note.post_id) %></td>
+            <td><%= link_to_user note.creator %></td>
+            <td><%= compact_time(note.created_at) %></td>
+            <td>
+              <%= h(note.body) %>
+              <% unless note.is_active? %>
+                <span class="inactive">(deleted)</span>
+              <% end %>
+            </td>
+          </tr>
+        <% end %>
+      </tbody>
+    </table>
+
+    <%= sequential_paginator(@notes) %>
+  </div>
+</div>
+
+<%= render "notes/secondary_links" %>
+
+<% content_for(:page_title) do %>
+  Notes - <%= Danbooru.config.app_name %>
+<% end %>