Remove gnomenetwork now that the only living piece of it was broken out
into the gnomenettool port.

Chase the glib20 update, and bump all affected ports' PORTREVISIONs.

- Add SIZE to GNOME ports

Submitted by:   trevor

Whoa there, boy, that's a mighty big commit y'all have there...

Begin autotools sanitization sequence by requiring ports to explicitly
specify which version of {libtool,autoconf,automake} they need, erasing
the concept of a "system default".

For ports-in-waiting:

        USE_LIBTOOL=YES         ->      USE_LIBTOOL_VER=13
        USE_AUTOCONF=YES        ->      USE_AUTOCONF_VER=213
        USE_AUTOMAKE=YES        ->      USE_AUTOMAKE_VER=14

Ports attempting to use the old style system after June 1st 2004 will be
sorely disappointed.

Bump PORTREVISION on all ports that depend on gettext to aid with upgrading.

(Part 1)

Add gnomenetwork, a suite of tools that allow for remote desktop connections,
SSH, and RSH shells, as well as a network information tool similar to MacOS
X's Netinfo.