configury: no need to duplicate release_extra_dist in local.mk.

* local.mk (release_extra_dist): Remove.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
configury: don't regenerate specl.1 after configure.

* local.mk ($(srcdir)/doc/specl.1): Depend on $(srcdir)/bin/specl
instead of generated specs/specl.  Add $(LUAM_ENV) to help2man
invocation, and call $(srcdir)/bin/specl instead of $(SPECL).

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
slingshot: sync with upstream.

* slingshot: Sync with upstream.
* bootstrap: Sync with slingshot.
* .travis.yml: Regenerate.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
Release version 10

* NEWS: Record release date.
maint: post-release administrivia.

* configure.ac (AC_INIT): Bump version to 11.
* NEWS: Add header line for next release.
* .prev-version: Record previous version.
* ./local.mk (old_NEWS_hash): Auto-update.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>