Preliminary-stable-builds: new platforms and new distribution

Hi all, I have for you some informations about alternative apt source 'preliminary-stable-builds'. 1) Because the release of Jessie as a new stable series is approaching, I extended the platforms for which are packages built. Besides usual amd64, i386, armel and armhf. a) mips => 100% done b) powerpc => due to a technical problem with qemu-user are not built c) arm64 => 100% done - someone has such hardware? We are ready :) 2) On the user wish I added build for Ubuntu 14.04 (Trusty) on PowerPC platform (Ubuntu Ports) => 100% done. 3) Finally, preliminary packages for upcoming Ubuntu 15.04 (Vivid) are available - the usual platforms amd64 and i386. And, of course, are continually updated packages :) -- Slávek