grim/purple-objects-docbook

Change the book title from "Purple Objects Overview" to "Purple Objects"
<?xml version="1.0"?>
<!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<appendix id="todo">
<title>TODO List</title>
<variablelist>
<varlistentry>
<term class="veryhigh">
Dump devtodo output into the book as well
</term>
</varlistentry>
<varlistentry>
<term class="high">
Create conversation graphs
</term>
</varlistentry>
</variablelist>
</appendix>