#70 Highscore: Can't click on these tiny little icons

[Björn Eberhardt]

The house icon referring to the homepage URL can't be clicked.
The portrait and speech bubble icon may not be understandable by guests.
The headers should have a symbol (question mark or star?) that explains (on hover) the meaning of these icons (e.g. "Personal Homepage", "User has an Avatar", "Game has a comment").