o11s documentation URL change

[Andrey Yurovsky]

Hello.  We've renamed the mesh HOWTO page to on the open80211s wiki to
http://open80211s.org/trac/wiki/HOWTO

Please refer to this page for the latest documentation and mesh
tutorials -- the documentation on this page will assume that you are
using the wireless-testing kernel and the latest iw tool unless
otherwise stated.  If you have links or bookmarks to
http://open80211s.org/trac/wiki/HOWTO-0.2.1 please update them
accordingly, that page will now reflect the documentation for our
0.2.1 release, which is a bit out of date now as iw and other details
have changed and more drivers are now supported.  The basic iw
commands are also documented on the official iw page:
http://wireless.kernel.org/en/users/Documentation/iw

Thanks,

  -Andrey