[PATCH] Snapshot install instructions use bz2, not xz

[Christopher Faylor]

On Wed, Jan 29, 2014 at 04:46:09PM +0000, Adam Dinwoodie wrote:
>I've attached a minor correction to the FAQ entry on installing
>snapshots, to note that snapshots are now .xz archives, rather than
>.bz2.

Thanks for the heads up.  I've made some more general wording changes
in faq-setup.xml.

cgf