Removes some old commented bits that won't be used

main.latex

@@ -214,37 +214,6 @@
 	}
 \end{frame}
 
-%\begin{frame}[fragile]
-%	\frametitle{Setting It Up}
-%	\framesubtitle{Preferences}
-%
-%	\textbf{Pick One}
-%	\begin{minted}{bash}
-%		# No colour
-%		git config --global color.ui never
-%
-%		# Auto colour
-%		git config --global color.ui auto
-%
-%		# Force colour
-%		git config --global color.ui always
-%
-%		# Overide for a command
-%		git -c color.ui=always status > ~/some-file
-%
-%	\end{minted}
-%	
-%	\note{%
-%		On Linux systems, this is set to auto by default. Might be different on a Mac. Generally
-%		auto is probably what you want. It will be coloured unless you are piping the output to a
-%		file or another process.
-%
-%		Take note of the incorrect spelling of colour.
-%
-%		You can override all configuration options on an individual command basis if you like.
-%	}
-%\end{frame}
-
 \begin{frame}
 	\frametitle{Terminology}
 	\framesubtitle{Objects}
@@ -283,12 +252,6 @@
 				.2 final.
 				.3 some.
 				.3 files.
-				% .2 real-final.
-				% .3 some.
-				% .3 files.
-				% .2 actual-real-final.
-				% .3 some.
-				% .3 files.
 			}
 		\end{column}
 		\begin{column}{0.5\textwidth}
@@ -316,8 +279,9 @@
 	}
 \end{frame}
 
+
 \begin{frame}
-	\frametitle{Model it}
+	\frametitle{Improve it}
 	\begin{center}
 		\begin{tikzpicture}
 		%\draw (-1.5,-1.5) rectangle (7.5,1.5);
@@ -337,13 +301,13 @@
 			\item This is a simple representation of the folder structure we saw.
 			\item Notice that so the computer knows the order, somewhere in each ``snapshot", we
 				include a reference to the previous snapshot.
+			\item This is stored along side other metadata such as a timestamp and the person
+				taking the snapshot.
 			\item We then just need to record the most recent version somewhere.
 		\end{itemize}
 	}
 \end{frame}
 
-
-
 \begin{frame}
 	\frametitle{Commits}
 	\begin{center}
@@ -352,7 +316,7 @@
 		%\node at (-2.5,0) {master};
 		\node[commit] at (0,0) (commit1) {93e4d3d\ldots};
 		\node[commit] at (3,0) (commit2) {2557962\ldots};
-		\node[commit] at (6,0) (commit3) {od68560\ldots};
+		\node[commit,draw=red] at (6,0) (commit3) {od68560\ldots};
 		\draw[arrow] (commit1) -- (commit2);
 		\draw[arrow] (commit2) -- (commit3);
 		\node[draw,text width=1.8cm,anchor=north,align=center] at (0, -1.5) {\small \vdots\\[0.1cm] };