server side mv request (coovachilli → coova-chilli)

[Paweł Zuzelski]

Please, rename coovachilli to coova-chilli. Also please rename .spec
and patches.

There is a little confusion about official project name. Sometimes
they write it CoovaChilli, sometimes coova-chilli, sometimes just
Coova, and a binary is named “chilli”.

Anyway, tarball is named coova-chilli-%{version}.tar.gz and other
distros (medianix, OpenWRT) use “coova-chilli” name. I think we
should follow them.

-- 
Paweł