Put all hacks of hicolor icons and mime from ports to bsd.gnome.mk's gnomehack.
deskutils/drivel is the only port that has pkg-plist change, so bump the
PORTREVISION. The rest else should be no function change, but just remove the
patches to allow gnomehack takes care of it. Keep in mind, I only touch those
ports that already have gnomehack.
Reviewed by: pav and marcus