Move changeset comments controller to feeds module

app/views/changeset_comments/index.rss.builder

@@ -1,13 +0,0 @@
-xml.rss("version" => "2.0",
-        "xmlns:dc" => "http://purl.org/dc/elements/1.1/") do
-  xml.channel do
-    if @changeset
-      xml.title t(".title_particular", :changeset_id => @changeset.id)
-    else
-      xml.title t(".title_all")
-    end
-    xml.link url_for(:controller => "site", :action => "index", :only_path => false)
-
-    xml << render(:partial => "comment", :collection => @comments)
-  end
-end