[PATCH] docs: Refer to fixtures by name, not path

[Finucane, Stephen]

On 14 Mar 13:17, Stephen Finucane wrote:
> It's not necessary to use paths for fixtures, so update the docs and
> Vagrant install scripts to remove these.
> 
> Signed-off-by: Stephen Finucane <stephen.finucane at intel.com>

Merged.