Names of the planets, nicks, heroes

Sometimes, in the name of the planets appear Arabic or Chinese symbols, which are for most players on the Czech server unreadable and uncontrollable information. To facilitate the reading, it will be possible to use in any name only predetermined characters. It will be available to use the alphabet used in Central Europe (Czech, Slovak), Greek letters, numbers, and the few other selected characters ($ € #...). The selection of characters should be wide enough so that no one shouldn't be practically limited (excluding some extremes).