Figure 10.1 is broken

[AllenDowney]

We don't know why. This has been an intermittent issue for a while: it was broken, then it worked for a while, now it is broken again.

[ChrisMayfield]

Figure 15-1 is broken now too. I noticed there are some files in the images directory on Atlas that are also in the figs directory (and some are older versions). Could that be creating a conflict?

[DanGitOreilly]

If you remove the <para> tags from the <figure> markup, it should work. I tested on a branch and found it be be successful.

Here's the markup for Figure 10-1, including the errant <para>:

<figure id="fig.reference" float="False">
    <title>State diagram showing a variable that refers to a <literal remap="verb">Point object.</literal></title>


  <para> <mediaobject>
  <imageobject remap="includegraphics">
    <imagedata fileref="figs/reference.pdf"></imagedata>
  </imageobject>
</mediaobject></para>

  </figure>

[AllenDowney]

Resolved with a change in plastex's treecleaner.py