update cty.dat (2019-11-20 9M6 release) and ignore /A

ChangeLog

@@ -1,3 +1,7 @@
+20191204 / 2019-12-04  Fabian Kurz <fabian@fkurz.net>
+	* Handle /A like /P or /M (i.e. don't consider it relevant for the DXCC)
+	* Update to latest Big CTY by AD1C (Version 2019-11-20 / 9M6)
+
 20190309 / 2019-03-09  Fabian Kurz <fabian@fkurz.net>
     * Update to latest cty.dat
 	* Handle "full" calls in cty.dat (=)

README

@@ -20,7 +20,8 @@ Latitude:       51.00
 Longitude:      -10.00
 UTC shift:      -1.0
 
-When invoked with the -g flag, a Perl/Tk GUI with the same basic functionality, plus a worldmap showing the location of the DXCC is shown.
+When invoked with the -g flag, a Perl/Tk GUI with the same basic
+functionality, plus a worldmap showing the location of the DXCC is shown.
 
 When invoked with the -m [Prefix] command line option, the beam heading and
 direction to between the two countries is calculated.