Change to https when TGC found.

[Dom]

To handle this requirement I wrote a simple filter that sits in front of the
login controller. 

The filter checks for gateway=true, a valid TGC and that the service schema is
http. If these are true then the service is updated to https. 

The request continues on to the login controller.

The login controller then does all the fancy ticket work and forwards back to the
https service with the new service ticket.