[ekiga] Evolution::Book: Fixed compilation in DEBUG mode.

[Damien Sandras <dsandras src gnome org>]

commit 0bdc5c071e4574b1bc3097706fb63a360e6db7fb
Author: Damien Sandras <dsandras seconix com>
Date:   Tue Oct 6 18:51:46 2015 +0200

    Evolution::Book: Fixed compilation in DEBUG mode.

 plugins/evolution/evolution-book.cpp |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/plugins/evolution/evolution-book.cpp b/plugins/evolution/evolution-book.cpp
index 065b268..0a74879 100644
--- a/plugins/evolution/evolution-book.cpp
+++ b/plugins/evolution/evolution-book.cpp
@@ -38,6 +38,7 @@
 
 #include <string>
 #include <glib/gi18n.h>
+#include <iostream>
 
 #include "form-request-simple.h"