Merge branch 'NetMauMau' from velnias75/games-overlay

* bumps to 0.4
[games-board/netmaumau] rm 0.5 ebuild

This release does not exist yet.
[games-server/netmaumau] rm 0.5 ebuild

This release does not exist yet.
[games-server/netmaumau] explicitly set SUBSLOT
[games-board/netmaumau] depend on SUBSLOT
[games-board/netmaumau] fix indenting
restored version 0.5 files after rebase