billing_info.php file is edited

1. message on top navigator between username and logout button
2. enter suggestions and show suggestions
3. span area has been changed according to new layout (suggestion table)
4. Month wise and in between dates,  billing description is added.
billing_info2.inc.php edited

two commits have been done.
isset (suggestion) added which takes suggestions from users
isset(view) is added which shows bills according to month