Fix linux compile warnings

audiohandler.cpp

@@ -73,11 +73,12 @@ static qint16 uLawDecode(quint8 in)
 audioHandler::audioHandler(QObject* parent) :
     QIODevice(parent),
     isInitialized(false),
-    audioOutput(0),
-    volume(1.0f),
+    audioOutput(Q_NULLPTR),
+    audioInput(Q_NULLPTR)
     isUlaw(false),
     bufferSize(0),
-    isInput(0)
+    isInput(0),
+    volume(1.0f)
 {
 
 }

audiohandler.h

@@ -57,18 +57,19 @@ signals:
 private:
     void reinit();
 
-    int             bufferSize;
     QMutex          mutex;
-    bool            isUlaw;
-    bool            isInput;   // Used to determine whether input or output audio
 
     bool             isInitialized;
+    QAudioOutput* audioOutput;
+    QAudioInput* audioInput;
+    bool            isUlaw;
+    int             bufferSize;
+    bool            isInput;   // Used to determine whether input or output audio
+    float            volume;
+
     QByteArray       buffer;
     QAudioFormat     format;
     QAudioDeviceInfo deviceInfo;
-    QAudioOutput*    audioOutput = Q_NULLPTR;
-    QAudioInput*    audioInput = Q_NULLPTR;
-    float            volume;
 
 };