Remove metasets, overlays for gnome2.  Renamed Gnome3 metaset and ports-overlay to Gnome.  Moved xession for mate to 02Mate to replace Gnome.  Moved Gnome3 to 31 to replace where Mate was in the order.  Changed pkg-parents for Gnome & Cinnamon to Unsupported Desktops.  While technically these are both XDG complaiant Cinnamon does not work without 3D.  Gnome 3 also has many broken programs.
Update Makefile

Mate-themes is already installed by mate-base.
Update Makefile

mate-icon-theme-faenza already installed by mate-base
Update Makefile

Corrected this to mate-image viewer.
Update Makefile

Changed this back to eom.  That is actually the name of mate-image-viewer.  Odd.
Merge pull request #7 from pkgdemon/master

Remove metasets, overlays for gnome2.  Renamed Gnome3 metaset and ports-...