Correct/add "Menu" key definition, which is also not "Super".
@@ -439,7 +439,7 @@ Guacamole.Keyboard = function Keyboard(element) {
46: [0xFFFF, 0xFFFF, 0xFFFF, 0xFFAE], // delete / KP decimal
91: [0xFFE7], // left windows/command key (meta_l)
92: [0xFFE8], // right window/command key (meta_r)
- 93: null, // select key
+ 93: [0xFF67], // menu key
96: [0xFFB0], // KP 0
97: [0xFFB1], // KP 1
98: [0xFFB2], // KP 2
