Revision 314778

Convert to new options framework:

rename GNOME2 -> GNOME to fits what is defined in global options descriptions
remove X11_ONLY and consider that if X11 is selected and no UI is selected you
are in X11_ONLY mode
remove LANG option which wasn't used anyway
do not try to dirrmtry directory if NLS isn't checked
use RADIO option to do the magic checking of different toolkit
bsd.port.pre.mk and bsd.port.post.mk are not needed anymore so I just removed them

PR:		ports/176684
Submitted by:	bapt
Reviewed by:	miwi
Approved by:	maintainer timeout (14 days)