puavo-ltsp: keep release target UNRELEASED until the actual release
puavo-ltsp: fix typo: qemu-lvm -> qemu-kvm
puavo-ltsp: conflicts with ltsp-server because of ltsp-update-kernels
puavo-ltsp: got rid of debian/*.dirs

Our upstream developers aren't lazy, their Makefile is superb: it
creates all the necessary directories already.
puavo-ltsp: add dependency on ruby-ipaddress for bootserver
puavo-ltsp: release 0.7.0-0+opinsys1