[empathy] Add missing #include.

[Travis Reitter <treitter src gnome org>]

commit 5598cb0b0b012199fb5cfe8a0f2a5b05ed8078c8
Author: Travis Reitter <travis reitter collabora co uk>
Date:   Tue Oct 12 23:16:17 2010 -0700

    Add missing #include.

 libempathy/empathy-contact.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libempathy/empathy-contact.c b/libempathy/empathy-contact.c
index a7aa0e7..4db37f6 100644
--- a/libempathy/empathy-contact.c
+++ b/libempathy/empathy-contact.c
@@ -39,6 +39,7 @@
 #endif
 
 #include "empathy-contact.h"
+#include "empathy-individual-manager.h"
 #include "empathy-utils.h"
 #include "empathy-enum-types.h"
 #include "empathy-marshal.h"