func RenderFeedAtom(ctx *webapp.Context) error {
vars := make(map[string]interface{})
vars["Declaration"] = template.HTML("<?xml version=\"1.0\" encoding=\"UTF-8\"?>")
data := MakeData(ctx, vars)
data.Flags.Feed = true
ctx.SetHeader("Content-Type", "application/atom+xml")
err := ctx.Execute(feedTPL, &data)
return err
}