There are a 58 docs files, so adding an autogenerated Table Of
Contents to them all will take some time.  This is the first
piece of the work done.

Got sick of seeing the "validity error : ID Objects already defined"
errors, which this patch addresses.

This patch is the result of running the following command in the docs
directory: sed -i 's/\t/        /g; s/\s*$//' *.html.in

* docs/*.html.in:convert tabs into 8 spaces and remove trailing whitespace

* 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