Don't allow paging of the changeset atom feed

Make any request for a changeset feed with a page argument redirect
to the version with no page argument and ensure that any RSS links on
the HTML version of the changeset list don't have a page argument.

app/controllers/changeset_controller.rb

@@ -254,6 +254,9 @@ class ChangesetController < ApplicationController
   ##
   # list edits (open changesets) in reverse chronological order
   def list
+    if request.format == :atom and params[:page]
+      redirect_to params.merge({ :page => nil }), :status => :moved_permanently
+    else
       conditions = conditions_nonempty
 
       if params[:display_name]
@@ -316,6 +319,7 @@ class ChangesetController < ApplicationController
                               :offset => (@page - 1) * @page_size,
                               :limit => @page_size)
     end
+  end
 
 private
   #------------------------------------------------------------

app/views/changeset/list.html.erb

@@ -5,8 +5,8 @@
 <%= render :partial => 'changesets', :locals => { :showusername => !params.has_key?(:display_name) } %>
 <%= render :partial => 'changeset_paging_nav' %>
 
-<%= atom_link_to params.merge({ :format => :atom }) %>
+<%= atom_link_to params.merge({ :page => nil, :format => :atom }) %>
 
 <% content_for :head do %>
-<%= auto_discovery_link_tag :atom, params.merge({ :format => :atom }) %>
+<%= auto_discovery_link_tag :atom, params.merge({ :page => nil, :format => :atom }) %>
 <% end %>