[gnome-calculator] Update valac 0.24 for string-parsing modernization

[Arth Patel <arthpatel src gnome org>]

commit 7aee68c5d4607e6a41e180686eab8600bdaaf970
Author: PioneerAxon <arth svnit gmail com>
Date:   Mon Apr 7 02:13:15 2014 +0530

    Update valac 0.24 for string-parsing modernization

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 478c85d..261f9bc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,7 +7,7 @@ AM_SILENT_RULES([yes])
 AM_MAINTAINER_MODE
 GNOME_MAINTAINER_MODE_DEFINES
 
-AM_PROG_VALAC([0.22])
+AM_PROG_VALAC([0.24])
 AM_PROG_CC_C_O
 
 AC_PATH_PROG(GLIB_COMPILE_RESOURCES, glib-compile-resources)