Release Candidate 3 missing some figures in pdf output of docbooks

[Marshall Schor]

A user has noticed that several figures (but not all) are missing in the 
PDF output of the docbooks. 
The figures are there in my current docbook builds - so I'm not sure 
what went wrong.

Let's fix this if we have to redo the build.  Otherwise I think I'd let 
this one go for now.
-Marshall