manual: Start with a skeleton of a usermanual

This is a DocBook skeleton that should morph into a proper
usermanual for the SIMtrace.

docs/usermanual.xml

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ex:ts=4:sw=4:sts=4:et
+  -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+-->
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+<!ENTITY chapter-introduction SYSTEM "chapters/introduction.xml">
+<!ENTITY chapter-using SYSTEM "chapters/using.xml">
+<!ENTITY chapter-building SYSTEM "chapters/building.xml">
+<!ENTITY chapter-appendix SYSTEM "chapters/appendix.xml">
+]>
+
+<book>
+  <bookinfo>
+    <revhistory>
+        <revision>
+            <revnumber>0.0.1</revnumber>
+            <date>12 July 2011</date>
+            <authorinitials>z</authorinitials>
+            <revremark>Initial</revremark>
+        </revision>
+    </revhistory>
+
+    <title>SIMtrace Usermanual</title>
+
+    <copyright>
+      <year>2011</year>
+    </copyright>
+
+    <legalnotice>
+      <para>This work is licensed under a Creative Commons Attribution 3.0
+      Unported License. To view a copy of this license, visit <ulink
+      url="http://creativecommons.org/licenses/by-sa/3.0/">http://creativecommons.org/licenses/by-sa/3.0/</ulink>
+      or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford,
+      California 94305, USA.</para>
+    </legalnotice>
+  </bookinfo>
+
+  <!-- Main chapters-->
+  &chapter-introduction;
+  &chapter-using;
+  &chapter-building;
+
+  &chapter-appendix;
+</book>