Clean up release packages

[skaldarnar]

Currently all packages mostly contain the same files, especially .exe are present also in MacOS and *nix packages.

The bundled files should be specific to the target platform to avoid confusion when extracting and starting the launcher.

Closes #387

[skaldarnar]

We have the following .desktop file described in our wiki. Consider to ship this as TerasologyLauncher.desktop in the launcher directory for Linux. Some distributions, e.g., Ubuntu, now let you start the launcher by double-clicking the file.

This was originally provided by @BenjaminAmos.

[Desktop Entry]
Version=3.10
Type=Application
Terminal=true
Exec=sh -c 'bash "$(dirname "%k")"/bin/TerasologyLauncher'
Path=
Icon=
Name=Terasology Launcher
Comment=This is the Terasology Launcher
StartupNotify=true
GenericName[en_GB]=Game Launcher
Categories=Game;Java

See also

• https://wiki.archlinux.org/index.php/Desktop_entries
• https://developer.gnome.org/integration-guide/stable/desktop-files.html.en

[jdrueckert]

516 nicely cleaned up the release packages.

Remaining todo is the .desktop file for linux. At the moment, this is not so easy. In the future, especially with #520 it should come more or less for free.