update version from 17 to 18

Author: Julio Montes

configure.ac

@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.68])
-AC_INIT([clr-cloud-init],[17],[[email protected]])
+AC_INIT([clr-cloud-init],[18],[[email protected]])
 AM_INIT_AUTOMAKE([foreign -Wall -Werror -Wno-portability silent-rules subdir-objects color-tests no-dist-gzip dist-xz])
 AC_CONFIG_SRCDIR([src/main.c])
 AC_CONFIG_FILES([Makefile