Add default response to one2many and many2mane dialog

tryton/gui/window/view_form/view/form_gtk/many2one.py

@@ -46,6 +46,8 @@ class Dialog(object):
         self.but_ok.add_accelerator('clicked', self.accel_group,
                 gtk.keysyms.Return, gtk.gdk.CONTROL_MASK, gtk.ACCEL_VISIBLE)
 
+        self.dia.set_default_response(gtk.RESPONSE_OK)
+
         scroll = gtk.ScrolledWindow()
         scroll.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
         scroll.set_placement(gtk.CORNER_TOP_LEFT)

tryton/gui/window/view_form/view/form_gtk/one2many.py

@@ -147,6 +147,8 @@ class Dialog(object):
         self.but_ok.add_accelerator('clicked', self.accel_group,
                 gtk.keysyms.Return, gtk.gdk.CONTROL_MASK, gtk.ACCEL_VISIBLE)
 
+        self.dia.set_default_response(gtk.RESPONSE_OK)
+
         self.default_get_ctx = default_get_ctx
 
         menuitem_title = None