[empathy] bump tp-glib dep to 0.15.1

[Guillaume Desmottes <gdesmott src gnome org>]

commit 920122ee2e7be94a844d8f6736df2aab9f688a1d
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Tue May 17 12:41:54 2011 +0200

    bump tp-glib dep to 0.15.1
    
    tp_channel_dispatch_operation_claim_with_async() has been introduced in 0.15.0
    but suffers a race (fdo #37280) fixed in 0.15.1.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 8b8eef6..dde9487 100644
--- a/configure.ac
+++ b/configure.ac
@@ -40,7 +40,7 @@ GCR_REQUIRED=2.91.4
 LIBCANBERRA_GTK_REQUIRED=0.25
 LIBNOTIFY_REQUIRED=0.7.0
 TELEPATHY_FARSIGHT_REQUIRED=0.0.14
-TELEPATHY_GLIB_REQUIRED=0.14.3
+TELEPATHY_GLIB_REQUIRED=0.15.1
 TELEPATHY_LOGGER=0.2.0
 
 # Optional deps