Downgrade version since this is not mandatory

Author: adeptio-project

configure.ac

@@ -1,8 +1,8 @@
 dnl require autoconf 2.60 (AS_ECHO/AS_ECHO_N)
 AC_PREREQ([2.60])
 define(_CLIENT_VERSION_MAJOR, 2)
-define(_CLIENT_VERSION_MINOR, 2)
-define(_CLIENT_VERSION_REVISION, 0)
+define(_CLIENT_VERSION_MINOR, 1)
+define(_CLIENT_VERSION_REVISION, 3)
 define(_CLIENT_VERSION_BUILD, 0)
 define(_CLIENT_VERSION_IS_RELEASE, true)
 define(_COPYRIGHT_YEAR, 2019)