Includes, comments and bugfixes

- Fix includes
- Use common regex (Song::kCoverRemoveDisc) for removing Disc/CD from album
- Remove Disc/CD from album when creating hash
- Make imobiledevice support compile
- Fix setting device on windows

3rdparty/qtsingleapplication/qtsingleapplication.cpp

@@ -39,8 +39,12 @@
 
 
 #include "qtsingleapplication.h"
-#include "qtlocalpeer.h"
+
+#include <QApplication>
 #include <QWidget>
+#include <QString>
+
+#include "qtlocalpeer.h"
 
 /*!
     \class QtSingleApplication qtsingleapplication.h