Clean headers in ProjectExplorer.

Change-Id: If61a8a91d2a39c5c97974a5bfcef91892b68d3f1
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

src/plugins/android/androidconfigurations.h

@@ -34,6 +34,7 @@
 #include <QString>
 #include <QVector>
 #include <projectexplorer/abi.h>
+#include <utils/fileutils.h>
 
 QT_BEGIN_NAMESPACE
 class QSettings;