[fixed] On OSX,Wings3d 2.0.2 didn't work for add/delete hotkey.

[tkbd]

dgud,Thank you for advice.
And,by testing about hotkeys,these new facts are found.

1. Wings3D2.0.2(OSX) key combo for enter Bind/Unbind mode had ⌘+8, it wasn't Alt+⌘+8
   
2. To bind a hotkey on Menu bar Item,then Wings3D makes crash log.
   
3. To bind a hotkey on RMB menu,Binding is successful. But this time,it can't Delete the Hotkey. ( Check hotkeys(s) for delete and click OK,but the hotkey(s) still binded )
   

1.
⌘ = cmd Key
(Tested on OSX 10.11.2,Wings3D 2.0.2, Apple Pro Keyboard(USB2))

⌘+8 = enter Bind mode
⌘+9 = enter Unbind mode
⌘+Del = enter Unbind mode

2.
It Bind SHIFT+Alt+A key to "View > Aim to selection",then Wings makes a crash log.

Code:

Dump written 2015-12-29_20-14
Version: 2.0.2
Window: geom
Reason: function_clause

Short stack trace:
[]

Long stack trace:
[{wings_hotkey,mac_modname_wx,
               [{109,[alt,shift]}],
               [{file,"wings_hotkey.erl"},{line,409}]},
{wings_hotkey,format_hotkey,2,[{file,"wings_hotkey.erl"},{line,41}]},
{wings_hotkey,do_bind,2,[{file,"wings_hotkey.erl"},{line,158}]},
{wings_hotkey,event_handler,2,[{file,"wings_hotkey.erl"},{line,135}]},
{wings_wm,handle_event,3,[{file,"wings_wm.erl"},{line,931}]},
{wings_wm,send_event,2,[{file,"wings_wm.erl"},{line,903}]},
{wings_wm,do_dispatch,2,[{file,"wings_wm.erl"},{line,768}]},
{wings_wm,get_and_dispatch,0,[{file,"wings_wm.erl"},{line,660}]}]

It Bind N key to "View > Align to selection",then Wings makes a crash log.

Code:

Dump written 2015-12-29_20-20
Version: 2.0.2
Window: geom
Reason: function_clause

Short stack trace:
[]

Long stack trace:
[{wings_hotkey,mac_modname_wx,"n",[{file,"wings_hotkey.erl"},{line,409}]},
{wings_hotkey,format_hotkey,2,[{file,"wings_hotkey.erl"},{line,41}]},
{wings_hotkey,do_bind,2,[{file,"wings_hotkey.erl"},{line,158}]},
{wings_hotkey,event_handler,2,[{file,"wings_hotkey.erl"},{line,135}]},
{wings_wm,handle_event,3,[{file,"wings_wm.erl"},{line,931}]},
{wings_wm,send_event,2,[{file,"wings_wm.erl"},{line,903}]},
{wings_wm,do_dispatch,2,[{file,"wings_wm.erl"},{line,768}]},
{wings_wm,get_and_dispatch,0,[{file,"wings_wm.erl"},{line,660}]}]

----
tkbd