Merge branch 'micro' into maint

* micro:
  maint: support new Automake versioning scheme in tagging/uploading rules
  announcement: can be generated from development snapshots as well
  announcement: can be generated from development snapshots as well
  announcement: be less strict in the paring of NEWS
  maint: version bump after beta release 1.13.2b
  release: beta release 1.13.2b (will become 1.13.3)
  sync: update config.guess from upstream

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --cc maintainer/maint.mk
Simple merge