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

src/widgets/linetextedit.h

@@ -23,7 +23,14 @@
 
 #include "config.h"
 
+#include <QObject>
+#include <QWidget>
+#include <QSize>
+#include <QString>
 #include <QTextEdit>
+#include <QtEvents>
+
+class QKeyEvent;
 
 class LineTextEdit : public QTextEdit {
   Q_OBJECT