[games-fps/unvanquished] version bump to 0.28.0
[games-engines/love] initial import
[games-action/minetest] update live ebuild
[games-strategy/0ad] rm obsolete ebuilds
[games-fps/unvanquished] version bump to 0.30.0
[games-fps/unvanquished] fix licenses
[games-engines/openmw] update mygui dependency
[games-engines/openmw] fixed ffmpeg dependency

media-video/ffmpeg -> virtual/ffmpeg
[games-engines/openmw] rm old
[games-action/minetest_game] loosen the dep a bit

We don't need a real client to make use of these
game files.
Rm obsolete packages
[games-action/minetest] fix deps

This also allows to run a pure dedicated server without
irrlicht rdeps.
[games-fps/unvanquished] version bump to 0.31.0
[games-engines/openmw] version bump to 0.33.0
[games-engines/openmw] Fix doc USE flag
[games-engines/openmw] rm, was imported into the main tree
[games-puzzle/enigma] import experimental version with enet-1.3 support

Gentoo-bug: 424341
Gentoo-bug-url: https://bugs.gentoo.org/show_bug.cgi?id=424341