build: bumping version number in configure.ac
-# Copyright (c) 2007 - 2017 Joseph Gaeddert
+# Copyright (c) 2007 - 2018 Joseph Gaeddert
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# Process with autoconf to generate configure script
#
-AC_INIT([liquid-dsp],[1.2.0],[support@liquidsdr.org])
+AC_INIT([liquid-dsp],[1.3.1],[support@liquidsdr.org])
AC_CONFIG_SRCDIR([src/libliquid.c])
AC_CONFIG_MACRO_DIR([scripts])
