C++11 style

app/src/handlers/confighandler.h

@@ -10,7 +10,7 @@ class ConfigHandler : public QObject
     Q_OBJECT
 
 public:
-    explicit ConfigHandler(QObject *parent = 0);
+    explicit ConfigHandler(QObject *parent = nullptr);
 
 public slots:
     QJsonObject getAppConfigApplication();

app/src/handlers/itemhandler.h

@@ -14,7 +14,7 @@ class ItemHandler : public QObject
     Q_OBJECT
 
 public:
-    explicit ItemHandler(ConfigHandler *configHandler, QObject *parent = 0);
+    explicit ItemHandler(ConfigHandler *configHandler, QObject *parent = nullptr);
 
 signals:
     void metadataSetChanged();

app/src/handlers/ocsapihandler.h

@@ -10,7 +10,7 @@ class OcsApiHandler : public QObject
     Q_OBJECT
 
 public:
-    explicit OcsApiHandler(ConfigHandler *configHandler, QObject *parent = 0);
+    explicit OcsApiHandler(ConfigHandler *configHandler, QObject *parent = nullptr);
 
 public slots:
     bool addProviders(const QString &providerFileUrl);

app/src/handlers/systemhandler.h

@@ -7,7 +7,7 @@ class SystemHandler : public QObject
     Q_OBJECT
 
 public:
-    explicit SystemHandler(QObject *parent = 0);
+    explicit SystemHandler(QObject *parent = nullptr);
 
 public slots:
     bool isUnix();

app/src/websockets/websocketserver.h

@@ -18,7 +18,7 @@ class WebSocketServer : public QObject
     Q_OBJECT
 
 public:
-    explicit WebSocketServer(ConfigHandler *configHandler, const QString &serverName = "WebSocketServer", quint16 serverPort = 0, QObject *parent = 0);
+    explicit WebSocketServer(ConfigHandler *configHandler, const QString &serverName = "WebSocketServer", quint16 serverPort = 0, QObject *parent = nullptr);
     ~WebSocketServer();
 
 signals: