[wmii] removal of liblitz, separation of ixpc, wmii updated

Hi there,

I created a separate libixp package (without a separate libnet
lib, atm libnet would be useless) and removed liblitz and
libcext completely from wmii.

libixp is now a _mandatory_ dependency of the hg tip of wmii:
You can clone a copy of libixp stand-alone from here:

  http://lib.suckless.org/

libixp contains a command-line tool called ixpc, which is the
successor of wmiir (from wmii hg tip). The scripts of wmii hg
tip already use this ixpc client.

wmii itself only contains the wmii script (which calls wmiiwm)
and the rc/ directory (containing wmiirc, welcome, quit and status).
The wmii hg tip already was based on dmenu quite a long time.

This means, in order to get a working wmii from -current tip you
need to install:

  dmenu
  libixp
  wmii

Regards,

-- 
 Anselm R. Garbe  ><><  http://suckless.org/arg/  ><><  GPG key: 0D73F361