[FIX]move hot key for open annotation from ctrl+q to Ctrl+Shift+O to avoid colision with Mac universial application quit key Command+Q
[FIX]move hot key for open annotation from ctrl+q to Ctrl+Shift+O to avoid colision with Mac universial application quit key Command+Q

jiyeqian/labelImg,tzutalin/labelImg,jiyeqian/labelImg,tzutalin/labelImg