CHECK BTS


CHANGELOG

 * Mention new tag format in debian/changelog

 * Mention new --quilt=* in debian/changelog

 * Mention in-archive copy fix in debian/changelog

 * Mention in changelog that:
   Remove lrfetchrefs at end of fetch_from_archive, for tidyness

 * Mention on changelog or docs that we no longer set a fetch spec for
   the dgit remote (which doesn't really work anyway)