[gnome-system-monitor] Readd include to make build work again

[Robert Roth <robertroth src gnome org>]

commit e7c1b61917defa46bb34fe57f3acf99d871dee46
Author: Robert Roth <robert roth off gmail com>
Date:   Wed Aug 7 00:38:52 2013 +0300

    Readd include to make build work again

 src/application.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/application.h b/src/application.h
index 5568379..e9a257c 100644
--- a/src/application.h
+++ b/src/application.h
@@ -3,6 +3,7 @@
 #define _PROCMAN_PROCMAN_APP_H_
 
 #include <gtkmm.h>
+#include <glibtop/cpu.h>
 
 struct ProcInfo;
 struct LoadGraph;