[NEW] x11/xeventbind

Dear ports@ readers,

this is a proposal for a new port: x11/xeventbind, a small utility that
runs a command upon X11 events.

DESCR
=====
> xeventbind is a small utility that runs a command when specific X11
> events happen (so far the only supported event is a resolution change).

This is a very small project (and done in haste, if you ask me... see
the patch, for example), but I found it very useful and I didn't find
anything similar on the net (if you know alternatives, I'd be very
interested).

Tested on amd64 only, taking MAINTEINER, tarball attached.

All the best

--
Alessandro DE LAURENZIS
[mailto:just22@atlantide.t28.net]
Web: http://www.atlantide.t28.net
LinkedIn: https://www.linkedin.com/in/delaurenzis/