Allow `http` and `https`

[SimonGoring]

I'm not sure why we're only allowing "http" here, and not "https".

Do we have a certificate issue?

[jpjenk]

earthlifeconsortium.org does not yet have an SSL certificate but one will be in place before the installation of this server

[SimonGoring]

I'm moving the milestone to release, which would be the release on the elc server.