KBlocks game: some messages untranslated

[Antoni Bella Pérez]

  Hi,

  While translating this doc I noticed that there are three menu item messages 
that have been removed from the translation system.

Game -> Single Game
        Human vs AI
Settings -> Play Sounds

  Can you fix it?

  Regards
  Toni
-- 
Dubta que les estrelles siguin foc.
Dubta que el Sol es mogui.
Dubta que la veritat sigui mentida.
Però no dubtis mai que t'estimo.
	- William Shakespeare

No se n'ha de posar massa
	- A grandmother on the TV show "Las recetas de Julie"