[gnome-builder] preferences-window: Fix vim_page unitialized

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit 9c9516251953baa0fa4d2659323c88b216cf71be
Author: Carlos Soriano <csoriano gnome org>
Date:   Sun Jan 11 16:52:59 2015 +0100

    preferences-window: Fix vim_page unitialized
    
    Wops, pushed too fast. I pushed the patch in the middle of the rebasing
    with master resolving conflicts, since master changed lines near that
    one.

 src/preferences/gb-preferences-window.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/preferences/gb-preferences-window.c b/src/preferences/gb-preferences-window.c
index b91ed79..0e4b31a 100644
--- a/src/preferences/gb-preferences-window.c
+++ b/src/preferences/gb-preferences-window.c
@@ -334,6 +334,7 @@ gb_preferences_window_class_init (GbPreferencesWindowClass *klass)
   GB_WIDGET_CLASS_BIND (widget_class, GbPreferencesWindow, search_bar);
   GB_WIDGET_CLASS_BIND (widget_class, GbPreferencesWindow, search_entry);
   GB_WIDGET_CLASS_BIND (widget_class, GbPreferencesWindow, stack);
+  GB_WIDGET_CLASS_BIND (widget_class, GbPreferencesWindow, vim_page);
 
   g_type_ensure (GB_TYPE_PREFERENCES_PAGE_GIT);
   g_type_ensure (GB_TYPE_PREFERENCES_PAGE_EDITOR);