Logo permalink?

[ponsfrilus]

Last time we changed our logo, it was a PITA to change every URL. The EPFL's CDN should provide a permalink for the EPFL Logo, that users can use (e.g. https://web2018.epfl.ch/latest/icons/epfl-logo.svg or https://web2018.epfl.ch/logo/epfl-logo.svg), rely on and that will always be up to date.