move saved search option to sidebar

app/views/posts/partials/common/_search.html.erb

@@ -15,5 +15,16 @@
     <% end %>
     <%= hidden_field_tag "ms", "1" %>
     <%= submit_tag "Go", :name => nil %>
+    <%= submit_tag "+", "data-jq-dropdown" => "#search-dropdown" %>
+    <div id="search-dropdown" class="jq-dropdown jq-dropdown-tip">
+      <ul class="jq-dropdown-menu">
+        <% if params[:tags].present? && SavedSearch.enabled? && CurrentUser.show_saved_searches? %>
+          <li><%= link_to "Save search", saved_searches_path, :id => "save-search" %></li>
+        <% end %>
+
+        <li><%= link_to "Search wiki", wiki_pages_path, :id => "wiki-search" %></li>
+        <li><%= link_to "Search artists", artists_path, :id => "artist-search" %></li>
+      </ul>
+    </div>
   <% end %>
 </section>