fix menubar behavior issue

no key_press and key_release after destroying caret under X11
missing some key_press events
menu text color issue

source/gui/detail/basic_window.cpp

@@ -347,6 +347,7 @@ namespace nana
 				flags.destroying = false;
 				flags.borderless = false;
 				flags.make_bground_declared = false;
+				flags.ignore_menubar_focus = false;
 
 				visible = false;