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/engine/devicefinder.cpp

@@ -19,9 +19,9 @@
 
 #include "config.h"
 
-#include "devicefinder.h"
+#include <QString>
 
-#include "core/logging.h"
+#include "devicefinder.h"
 
 DeviceFinder::DeviceFinder(const QString &name): name_(name) {
 }