Quite often, I need to cite URLs like
    http://libvirt.org/formatnetwork.html#elementQoS
but it is annoying to copy them from the table of contents or the html
source.

This patch borrows from the Python documentation in order to make it
easier to cite headers on libvirt's oneline documentation.

This adds two new pages to the website, acl.html describing
the general access control framework and permissions models,
and aclpolkit.html describing the use of polkit as an
access control driver.

page.xsl is modified to support a new syntax

  <div id="include" filename="somefile.htmlinc"/>

which will cause the XSL transform to replace that <div>
with the contents of 'somefile.htmlinc'. We use this in
the acl.html.in file, to pull the table of permissions
for each libvirt object. This table is autogenerated
from the enums in src/access/viraccessperms.h by the
genaclperms.pl script.

newapi.xsl is modified so that the list of permissions
checks shown against each API will link to the description
of the permissions in acl.html
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Add missing 'html:' namespace prefix to a few more XSL
rules for generating the table of contents links
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The previous commit failed to update the XSL to take account
of fact that in XHTML mode the elements need namespace
prefixes. This caused every web page to be blank!

Links to the FAQ didn't work on pages in subdirectories, like
devhelp/libvirt-virterror.html or internals/command.html, because
they have had href_base prepended to them.

* docs/Makefile.am docs/api.html docs/api.html.in docs/archdomain.html
 docs/archnetwork.html docs/archnode.html docs/archstorage.html
 docs/goals.html docs/intro.html
 docs/libvirt-daemon-arch.fig docs/libvirt-daemon-arch.png
 docs/libvirt-driver-arch.fig docs/libvirt-driver-arch.png
 docs/libvirt-object-model.fig docs/libvirt-object-model.png
 docs/page.xsl docs/sitemap.html docs/sitemap.html.in:
 adding a new api page, extending the stylesheet to allow references
 and including images from Dan Berrange
daniel

  docs/*.html docs/html/*.html: removed footer, added sponsor logo
  regenerated the html pages also fixed 'make distcheck' as
  pointed by Jim.
Daniel

* docs/page.xsl docs/redhat.gif docs/*.html: using the shadowman
  logo to indicate Red Hat sponsoring, regenerated.
Daniel