Topping mode

[ipkiss42]

The "topping" mode is a popular variant, in particular among good Duplicate players.
The principle is the following: a chrono is started, and stops only at the end of the game. At each turn, the player must find the best possible word (within a time limit). He can propose as many words as possible, until the best word is found, or the timer expires for the turn. If the word is found, the next turn starts immediately. If the timer expires, the next turn is displayed, and the player has a score penalty.

The following website allows to play topping online, in French (with a few graphical bugs sometimes):
http://www.forum.exionnaire.com/scrabble-jeu-en-ligne-4061

In Eliot, it could be implemented as a new game mode.
Issue #8, even though not strictly required, would make the topping mode much more pleasant.

[ipkiss42]

Work started in 681a7b2.