Update Security Config for stateless basic HTTP Authentication

The whole Video Store domain is under a single Firewall, which is a
stateless, basic HTTP authentication. The username is “user” and the
password is defined in the “parameters.yml” file.

Two extra security mechanisms are added: the connexion has to be SSH
secured (https) and the client IP address must match either ‘localhost’
or the IP address defined in ‘parameters.yml’.