+As this is a modified version, the name of Bryan O'Sullivan is used
+only to properly credit him with the original text. The appearance of
+his name here explicitly does not assert or imply his endorsement of
+this modified document.
+
+Portions Copyright © 2007 Carl Worth.
+
+Changes made by Carl include the following:
+
+ * 2007-09-27:
+ * Convert from HTML to markdown source syntax
+ * Eliminate all content except Chapter 2 and Appendix D
+ * Eliminate line numbers from examples
+