[Koha] opaccloud syspref

[David Nind]

>
> I have set OpacBrowser to "don't allow patrons to browse subject
> authorities on OPAC", but the "subject cloud" link is still present...
>

Using Debian 3.8.2 Koha packages and a fresh instance with sample data, the
OpacCloud preference is under Administration > System preferences > Local
Use.

Turning this off removes the 'Subject cloud' link from displaying on the
OPAC - by default it isn't turned on though...