--- a/slides/slides05.tex	Tue Oct 21 02:35:06 2014 +0100
+++ b/slides/slides05.tex	Tue Oct 21 09:33:13 2014 +0100
@@ -464,8 +464,6 @@
 \end{itemize}
 \end{center}
 
-
-
 \end{frame}}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%