[gnome-boxes] app-window: Add F1 shortcut for help

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit b95509171810bd483a49fe7874426d82e0883f3b
Author: Lasse Schuirmann <lasse schuirmann gmail com>
Date:   Fri Jun 20 13:39:39 2014 +0200

    app-window: Add F1 shortcut for help
    
    https://bugzilla.gnome.org/show_bug.cgi?id=731956

 src/app-window.vala |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/app-window.vala b/src/app-window.vala
index eecc967..203aec0 100644
--- a/src/app-window.vala
+++ b/src/app-window.vala
@@ -158,6 +158,10 @@ private class Boxes.AppWindow: Gtk.ApplicationWindow, Boxes.UI {
             fullscreened = !fullscreened;
 
             return true;
+        } else if (event.keyval == Gdk.Key.F1) {
+            App.app.activate_action ("help", null);
+
+            return true;
         } else if (event.keyval == Gdk.Key.q &&
                    (event.state & default_modifiers) == Gdk.ModifierType.CONTROL_MASK) {
             App.app.quit_app ();