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--- mainwindow.cpp~	2011-12-14 12:18:36.000000000 -0600
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+++ mainwindow.cpp	2012-01-06 07:11:01.969955047 -0600
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@@ -4,6 +4,7 @@
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 #include <iostream>
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 #include <typeinfo>
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+#include <unistd.h>
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 #include "aboutdialog.h"
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 #include "branchpropwindow.h"