* Merge from Debian unstable. Remaining changes: - Add installation of upstream icons and .desktop file - Correct upstream .desktop file to be compliant with latest freedesktop.org specification and Gnome HIG - Correct upstream Makefile(s) so that icons and desktop files are installed in the right directory (/usr/share instead of /usr/share/games). - Modify Maintainer value to match Debian-Maintainer-Field Spec * Bump debhelper version to 5.0.51, required by dh_icons.