\section{Changelog}

\subsection*{0.2}
Extensive edits to all chapters by Mike Patterson.  Remove redundant content in altHUD section.

\subsection*{0.1.1b}
Re-add content accidentally deleted in \emph{0.1.1}.

\subsection*{0.1.1}
Never published. Initial copyedits and chapter breakup by Mike Patterson.

\subsection*{0.1}
Original revision by Eric Goller.
