This divides templates into two classes: autoflow and static. This is
controlled by a boolean "autoflow" property on templates. Any autoflow
templates that will be rendered for a host, have their cells arranged in
a left-to-right, top-to-bottom fashion.
Static templates, are assumed to have precise positioning information
for their graphs. The only adjustment made to them will be a translation
of their Y coords so they do not overlap other layouts.
The autoflow templates, after processing, become a static layout as
defined above and are positioned accordingly.
Peter A. Bigot
Tim Raymond
Chris Goller