Bump version numbers.

ChangeLog

+2015-04-24  Niels Möller  <nisse@lysator.liu.se>
+
+	* configure.ac: Bump package version, to nettle-3.1.1.
+	(LIBNETTLE_MINOR, LIBHOGWEED_MINOR): Bump minor versions, to
+	libnettle.so.6.1 and and libhogweed.so.4.1.
+
 2015-04-22  Niels Möller  <nisse@lysator.liu.se>
 
 	* x86_64/gcm-hash8.asm: Use ".value" instead of ".short", since

configure.ac

@@ -2,7 +2,7 @@ dnl -*- mode: shell-script; sh-indentation: 2; -*-
 
 dnl Process this file with autoconf to produce a configure script.
 
-AC_INIT([nettle], [3.1], [nettle-bugs@lists.lysator.liu.se])
+AC_INIT([nettle], [3.1.1], [nettle-bugs@lists.lysator.liu.se])
 AC_PREREQ(2.61)
 AC_CONFIG_SRCDIR([arcfour.c])
 # Needed to stop autoconf from looking for files in parent directories.
@@ -11,10 +11,10 @@ AC_CONFIG_AUX_DIR([.])
 AC_CONFIG_HEADER([config.h])
 
 LIBNETTLE_MAJOR=6
-LIBNETTLE_MINOR=0
+LIBNETTLE_MINOR=1
 
 LIBHOGWEED_MAJOR=4
-LIBHOGWEED_MINOR=0
+LIBHOGWEED_MINOR=1
 
 dnl Note double square brackets, for extra m4 quoting.
 MAJOR_VERSION=`echo $PACKAGE_VERSION | sed 's/^\([[^.]]*\)\..*/\1/'`