Bump version to next release

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1036 f882894a-f735-0410-b71e-b25c423dba1c

configure.in

@@ -1,7 +1,7 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_REVISION ($Revision$)
 AC_PREREQ(2.58)
-AC_INIT(nagios-plugins,1.4.0-alpha3)
+AC_INIT(nagios-plugins,1.4-beta1)
 AC_CONFIG_SRCDIR(Helper.pm)
 AM_INIT_AUTOMAKE
 AM_CONFIG_HEADER(config.h)