Don't always include "Hydra" in the logo part.

This partially reverts 67986b03fa08ae5acd2841b3e02be082af16bd7e.

Created by  Ludovic Courtès  on March 15, 2013
JINQDKLIBKGZLGFFJDTFDHCZXFNETNSTETZQOZPW7PKMGKL7AOTAC
Change contents