[gtkmm] Entry: Add grab_focus_without_selecting().

[Murray Cumming <murrayc src gnome org>]

commit 0bc02572b8967535b9dc30d66d6b495f2d0f3948
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Sep 15 10:34:54 2015 +0200

    Entry: Add grab_focus_without_selecting().

 gtk/src/entry.hg |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/src/entry.hg b/gtk/src/entry.hg
index 1ceca39..f90f196 100644
--- a/gtk/src/entry.hg
+++ b/gtk/src/entry.hg
@@ -219,6 +219,8 @@ public:
   _WRAP_METHOD(void set_tabs(const Pango::TabArray& tabs), gtk_entry_set_tabs)
   _WRAP_METHOD(Pango::TabArray get_tabs() const, gtk_entry_get_tabs)
 
+  _WRAP_METHOD(void grab_focus_without_selecting(), gtk_entry_grab_focus_without_selecting)
+
   //TODO: This signal now takes a GtkWidget* instead of just a GtkMenu*,
   //so change that when we can break ABI.
   //See https://git.gnome.org/browse/gtk+/commit/?id=88623b98a7ca0afca08ac21bc3aa662c6ed3ab7f