[tracker] build: libicu version requirement doesn't need to be so high, 4.8.1.1 is lowest

[Martyn James Russell <mr src gnome org>]

commit fc07b239027ffe1ab2f6c12dd8a5d790b6fe1933
Author: Martyn Russell <martyn lanedo com>
Date:   Mon Mar 10 17:07:57 2014 +0000

    build: libicu version requirement doesn't need to be so high, 4.8.1.1 is lowest

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 5e0c545..eb659f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -177,7 +177,7 @@ MEEGOTOUCH_REQUIRED=0.20
 POPPLER_REQUIRED=0.16.0
 CAIRO_REQUIRED=1.0
 GDK_REQUIRED=1.0
-LIBICU_REQUIRED=52.1
+LIBICU_REQUIRED=4.8.1.1
 LIBJPEG_REQUIRED="any version"
 LIBGIF_REQUIRED="any version"
 LIBTIFF_REQUIRED="any version"