Added wiki index by date.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@768 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/wiki/_sidebar.rhtml

@@ -1,4 +1,5 @@
 <h3><%= l(:label_wiki) %></h3>
 
-<%= link_to l(:label_page_index), {:action => 'special', :page => 'Page_index'} %>
-
+<%= link_to l(:field_start_page), {:action => 'index', :page => nil} %><br />
+<%= link_to l(:label_index_by_title), {:action => 'special', :page => 'Page_index'} %><br />
+<%= link_to l(:label_index_by_date), {:action => 'special', :page => 'Date_index'} %><br />