Release Spot 2.8.4

* NEWS, configure.ac, doc/org/setup.org: Set version to 2.8.4.

NEWS

@@ -1,4 +1,4 @@
-New in spot 2.8.3.dev  (not yet released)
+New in spot 2.8.4  (2019-12-08)
 
   Bugs fixed:
 
@@ -9,6 +9,9 @@ New in spot 2.8.3.dev  (not yet released)
     complementation algorithm to produce incorrect results on such
     inputs, causing false positives in ltlcross and autcross.
 
+  - Work around a small difference between Python 3.7 and 3.8, causing
+    spurious failures of the test suite.
+
 New in spot 2.8.3 (2019-11-06)
 
   Build:

configure.ac

@@ -21,7 +21,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 AC_PREREQ([2.63])
-AC_INIT([spot], [2.8.3.dev], [spot@lrde.epita.fr])
+AC_INIT([spot], [2.8.4], [spot@lrde.epita.fr])
 AC_CONFIG_AUX_DIR([tools])
 AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([1.11 gnu tar-ustar color-tests parallel-tests])

doc/org/setup.org

@@ -1,11 +1,11 @@
 #+OPTIONS: H:2 num:nil toc:t html-postamble:nil ^:nil
 #+EMAIL: spot@lrde.epita.fr
 #+HTML_LINK_HOME: index.html
-#+MACRO: SPOTVERSION 2.8.3
-#+MACRO: LASTRELEASE 2.8.3
-#+MACRO: LASTTARBALL [[http://www.lrde.epita.fr/dload/spot/spot-2.8.3.tar.gz][=spot-2.8.3.tar.gz=]]
-#+MACRO: LASTNEWS [[https://gitlab.lrde.epita.fr/spot/spot/blob/spot-2-8-3/NEWS][summary of the changes]]
-#+MACRO: LASTDATE 2019-11-06
+#+MACRO: SPOTVERSION 2.8.4
+#+MACRO: LASTRELEASE 2.8.4
+#+MACRO: LASTTARBALL [[http://www.lrde.epita.fr/dload/spot/spot-2.8.4.tar.gz][=spot-2.8.4.tar.gz=]]
+#+MACRO: LASTNEWS [[https://gitlab.lrde.epita.fr/spot/spot/blob/spot-2-8-4/NEWS][summary of the changes]]
+#+MACRO: LASTDATE 2019-12-08
 
 #+ATTR_HTML: :id spotlogo
 [[file:spot2.svg]]