refactor: Modernize Qt connections (#914)

include/hyperion/Hyperion.h

@@ -68,7 +68,7 @@ public:
 	///
 	/// free all alocated objects, should be called only from constructor or before restarting hyperion
 	///
-	void freeObjects(bool emitCloseSignal=false);
+	void freeObjects();
 
 	ImageProcessor* getImageProcessor() const { return _imageProcessor; }
 
@@ -398,8 +398,6 @@ signals:
 	///
 	void currentImage(const Image<ColorRgb> & image);
 
-	void closing();
-
 	/// Signal which is emitted, when a new json message should be forwarded
 	void forwardJsonMessage(QJsonObject);
 

include/ssdp/SSDPDiscover.h

@@ -1,13 +1,14 @@
 #ifndef SSDPDISCOVER_H
 #define SSDPDISCOVER_H
 
-#include <utils/Logger.h>
 #include <QHostAddress>
+#include <QMultiMap>
 #include <QUrl>
 #include <QRegularExpression>
 
 #include <chrono>
 
+class Logger;
 class QUdpSocket;
 
 enum class searchType{
@@ -202,7 +203,7 @@ private:
 	int _ssdpMaxWaitResponseTime;
 	int	_ssdpTimeout;
 
-	QMap<QString, SSDPService> _services;
+	QMultiMap<QString, SSDPService> _services;
 
 	QStringList _usnList;
 	QString _searchTarget;