Small changes in figs name, crop layout a bit

EDIT2013poster/contents.tex

@@ -70,11 +70,12 @@
 		\begin{column}{\twocolwid}
 			\begin{figure}[h!]
 				\begin{center}
-					\includegraphics[width=0.90\twocolwid]{../figs/comet/comet_phase1_tracker.pdf}
+					\includegraphics[width=0.99\twocolwid]{../figs/comet/comet_phase1_layout.png}
 				\end{center}
 				\caption{Schematic lay out of the COMET Phase I}
 				\label{fig:phase1}
 			\end{figure}
+			\vskip-2ex
 			\begin{columns}[t,totalwidth=\twocolwid]
 				\begin{column}{\onecolwid}
 					\begin{alertblock}{Proton beam}
@@ -124,6 +125,7 @@
 						\vskip-2ex
 						\begin{figure}[!h]
 							\includegraphics[width=0.95\onecolwid]{../figs/comet/comet_p1_det_bg}
+						\vskip-2ex
 							\caption{Concept of the detector for background measurements}
 							\label{fig:phys_det}
 						\end{figure}