Windows: Fix crash when unloading AutoScroll plugin

src/plugins/AutoScroll/autoscroller.cpp

@@ -45,6 +45,11 @@ AutoScroller::AutoScroller(const QString &settingsFile, QObject* parent)
     settings.endGroup();
 }
 
+AutoScroller::~AutoScroller()
+{
+    delete m_indicator;
+}
+
 bool AutoScroller::mouseMove(QObject* obj, QMouseEvent* event)
 {
     Q_UNUSED(obj)

src/plugins/AutoScroll/autoscroller.h

@@ -33,6 +33,7 @@ class AutoScroller : public QObject
     Q_OBJECT
 public:
     explicit AutoScroller(const QString &settingsFile, QObject* parent = 0);
+    ~AutoScroller();
 
     bool mouseMove(QObject* obj, QMouseEvent* event);
     bool mousePress(QObject* obj, QMouseEvent* event);