Partner companies and giving free credits to new users

The new partner companies setting makes possible for the administrator to list companies (by entering their usernames) for which using the services on the site should be free, so they can post jobs on the site or use the other services on the site without paying.
Other new features include the possibility to set automatically free credits to be given to the new users (if the credits method to charge the users is currently set on the site) or to manually make companies featured.