[ekiga] avahi: Include <iostream> since we use std::cout

[Eugen Dedu <ededu src gnome org>]

commit 8561e159f2095651d880edc418fedcabffac93e6
Author: Iain Lane <laney ubuntu com>
Date:   Sun Aug 23 13:49:29 2015 +0200

    avahi: Include <iostream> since we use std::cout

 plugins/avahi/avahi-heap.cpp |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/plugins/avahi/avahi-heap.cpp b/plugins/avahi/avahi-heap.cpp
index 0bdc410..eb26279 100644
--- a/plugins/avahi/avahi-heap.cpp
+++ b/plugins/avahi/avahi-heap.cpp
@@ -35,6 +35,7 @@
  */
 
 #include <cstdlib>
+#include <iostream>
 #include <glib/gi18n.h>
 
 #include "avahi-heap.h"