Put utilities functions in a module.
Store goban states in yyGoban.
Simpler.
Faster players infos insertion.
Optimize makeGobanInfos.
Rework colors.
Define them in css not with classes.
Recolor buttons and menu.
Make grid, stones and symbols class names more clear.
Track move number.
Put players ranks with names.
Hide player names on small width devices.
Test for long player names.
Adjust colors.
Add a border to box.
Lots of interface changes.

- inputs get rounded corners.
- inputhelp becomes inputbox-help and surround concerned input.
- chatbar reworked with rounded buttons.
- hide chat input if chat is hidden in small screen mode.
- replace hall menu with buttons.
- add button (title) for chat and userslist.
- color chat messages odd/even.
- cumulate messages from same spammer (chatter).
- show timestamps in chat.
Add pass button.

Need to find a better way to manage games buttons.
Add infos button.

Place text buttons at navbuttons sides.
Split game CSS.
Replace input with button for hall selection.
Proper buttons in chatbar.

This permit selection with tab.
Split load game screen view.
Use defined red for debug.
Button tag will not steal focus.
Remove menu border.
CSS tweaks.