x11-toolkits/p5-Gtk2-Unique: remove

Dead upstream, no consumers left in the ports tree

Clean up all commented PORTREVISION and PORTEPOCH lines

No revision bump tool that we have cleans them up or deals with
them, so we end up with duplicated lines.  Instead of implementing
that just clean up the 51 ports that do this.

PORTREVISION and PORTEPOCH can be set to 0 explicitly instead if
you need a reminder or placeholder.

Remove # $FreeBSD$ from Makefiles.

x11*: Add missing USES={gl,gnome,mate}

Update WWW

search.cpan.org is shutting down.
It will redirect to metacpan.org after June 25, 2018.

With hat:	perl

Fix license information for portgs that use "the same license as Perl".

Sponsored by:	Absolight

Remove ${PORTSDIR}/ from dependencies, categories v, w, x, y, and z.

With hat:	portmgr
Sponsored by:	Absolight

Perl bindings for the C library "libunique" that provides a mechanism for
writing single instance applications. If you launch a single instance
application twice, the second instance will either just quit or will send a
message to the running instance.

Unique makes it easy to write this kind of applications, by providing a base
class, taking care of all the IPC machinery needed to send messages to a running
instance, and also handling the startup notification side.

WWW: http://search.cpan.org/dist/Gtk2-Unique/