Log Message:
Import jwm from pkgsrc-wip.

This was packaged by pip88nl of gmail.com with some minor changes
by me.

JWM is a light-weight window manager for the X11 Window System.
It provides a menu, taskbar, key binding, system notification tray,
pager, a dock, and simple customizations.  JWM is written in C and
uses only Xlib and the shape extension, libXpm and (optionally)
libpng. It can support some MWM, GNOME, and WM Spec hints.

(This software needs some work, but I import to official pkgsrc
so it will get more usage. I have been using it for a couple
months now. With its built-in features, it is a smaller than
blackbox with add-ons.)