HW9: i18n (in emulator)

http://smg-gwt-emulator.appspot.com/GwtEmulator.html , enter in the
emulator this URL: http://6-dot-nyu-smg-mastermind.appspot.com/
HW9: i18n (in emulator) readme

i18n in zh(Chinese)

http://smg-gwt-emulator.appspot.com/GwtEmulator.html , enter in the
emulator this URL: http://6-dot-nyu-smg-mastermind.appspot.com/

For a view of chinese version without changing browser's locale, please
visit http://5-dot-nyu-smg-mastermind.appspot.com/
(not in emulator). This page fix the local to zh in html file.