CD / DVD testing for Buster release 4 - 202005092130 - Slowing down a bit - but still going.

Last few architectures are being built in the background. Schweer has just confirmed successful testing of all the Debian Edu images - thanks to him, as ever, and to all involved. We're slowing up a bit - it's been a long, hot day and it's not quite over yet. The images release looks to be well on course. As ever, the point release incorporates security fixes and some packages have been removed. The release announcement at https://www.debian.org/News/2020/20200509 gives the details.