Rewrite code for returning information about torrents as JSON (Web UI)

- The new code is simpler, cleaner and more efficient

src/webui/httpserver.h

@@ -58,7 +58,7 @@ class HttpServer : public QTcpServer {
   Q_DISABLE_COPY(HttpServer)
 
 public:
-  HttpServer(int msec, QObject* parent = 0);
+  HttpServer(QObject* parent = 0);
   ~HttpServer();
   void setAuthorization(const QString& username, const QString& password_sha1);
   bool isAuthorized(const QByteArray& auth, const QString& method) const;
@@ -80,7 +80,6 @@ private:
   void incomingConnection(int socketDescriptor);
 
 private slots:
-  void onTimer();
   void UnbanTimerEvent();
   void onLocaleChanged(const QString &locale);
 
@@ -90,8 +89,7 @@ private:
 private:
   QByteArray m_username;
   QByteArray m_passwordSha1;
-  EventManager *m_eventManager;
-  QTimer m_timer;
+  EventManager *m_eventManager; // TODO: Remove
   QHash<QString, int> m_clientFailedAttempts;
   bool m_localAuthEnabled;
   bool m_needsTranslation;