can not handle error when echo.renderer return error

[cgyy]

I write some code like this is handler:
//go code
return c.Render(200, "taxonomies/show", map[string]interface{}{
"taxonomy": taxonomy,
})

And, this renderer function like this:
func (r *renderer) Render(w io.Writer, name string, data interface{}) error {
.....
return errors.New("some error")
}

[vishr]

If any of the response functions including Context.Render returns error, the framework doesn't send http error as the response header is already written. The http error handler do get called but currently we are not logging the message - probably we will! Let me know your thoughts.