use https, update urls (use the ones available at xonotic.org)
I have updated the URLs to use the https version and changed some links (specifically IRC webchat.quakenet.org) to use the ones from xonotic.org
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
I have updated the URLs to use the https version and changed some links (specifically IRC webchat.quakenet.org) to use the ones from xonotic.org