[empathy] Warnings "GtkGrid does not have a child property called .." printed during startup

[Tomas Popela <tpopela src gnome org>]

commit e37549af8562e9d5c96cc1ee6a59535d7bc8cc61
Author: Tomas Popela <tpopela redhat com>
Date:   Tue Jul 25 15:07:01 2017 +0200

    Warnings "GtkGrid does not have a child property called .." printed during startup
    
    Based on the properties, change the object type from GtkGrid to GtkBox.

 src/empathy-roster-window.ui |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/empathy-roster-window.ui b/src/empathy-roster-window.ui
index 0177064..fffd0a6 100644
--- a/src/empathy-roster-window.ui
+++ b/src/empathy-roster-window.ui
@@ -23,7 +23,7 @@
               <class name="chat-sidebar"/>
             </style>
             <child>
-              <object class="GtkGrid" id="grid0">
+              <object class="GtkBox" id="box0">
                 <property name="can_focus">False</property>
                 <property name="hexpand">False</property>
                 <property name="orientation">vertical</property>
@@ -259,7 +259,7 @@
                       <class name="chat-status-area"/>
                     </style>
                     <child>
-                      <object class="GtkGrid" id="status_area_grid0">
+                      <object class="GtkGrid" id="status_area_box0">
                         <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="orientation">horizontal</property>