[gbrainy] Bump version to 2.2.4

[Jordi Mas <jmas src gnome org>]

commit 7923394afb8cadf240af56420ef62e7594e72e29
Author: Jordi Mas <jmas softcatala org>
Date:   Sun Dec 14 03:32:27 2014 -0500

    Bump version to 2.2.4

 configure.ac |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b0d78af..5d34134 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 # Define gbrainy version
 m4_define([gbrainy_version_major], [2])
 m4_define([gbrainy_version_minor], [2])
-m4_define([gbrainy_version_revision], [3])
+m4_define([gbrainy_version_revision], [4])
 
 m4_define([concat], $1$2$3$4)
 
@@ -180,7 +180,7 @@ dnl --- Assembly information
 BUILD_TIME=`date +"%F %T %Z"`
 AC_SUBST(BUILD_TIME)
 
-COPYRIGHT="(c) 2007-2014 Jordi Mas i Hernandez"
+COPYRIGHT="(c) 2007-2015 Jordi Mas i Hernandez"
 AC_SUBST(COPYRIGHT)
 
 dnl --- Prologue