[at-spi2-core] Bump version

[Mike Gorse <mgorse src gnome org>]

commit bfeeea1c5162e52203130ea7a7b76693e9ea7a45
Author: Mike Gorse <mgorse suse com>
Date:   Thu Jan 15 10:05:52 2015 -0600

    Bump version

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index da27be2..49ea58c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([at-spi2-core], [2.15.3], [accessibility-atspi lists linux-foundation org])
+AC_INIT([at-spi2-core], [2.15.4], [accessibility-atspi lists linux-foundation org])
 AC_PREREQ([2.59])
 AC_CONFIG_AUX_DIR(config)
 AC_CONFIG_MACRO_DIR([m4])