Adding clients to Billing System & discarding demobilling.

[GoogleCodeExporter]

We need to setup a "new client enrollment process".

Create a new Client in the billing system
Assign a package to the client.
Generates a monthly invoice to the client.
Once the payment is received from the client, we will manually renew the order.

Delete the demobilling database which is not needed and update the database 
references on the demo server.

Original issue reported on code.google.com by Mansur...@gmail.com on 9 Oct 2013 at 11:24