Tweak spec file to build from git snapshot tarball
Tweak spec file to build from git snapshot tarball

instead of from proper release tarball.  We no longer assume
that the configure script or built documents exist.

novaprova/novaprova,greig-hamilton/novaprova,gnb/novaprova,gnb/novaprova,novaprova/novaprova,gnb/novaprova,novaprova/novaprova,greig-hamilton/novaprova,greig-hamilton/novaprova,greig-hamilton/novaprova,greig-hamilton/novaprova,novaprova/novaprova,gnb/novaprova,novaprova/novaprova,gnb/novaprova