traffic counters initialization at start moment

src/statistics.cpp

@@ -102,6 +102,15 @@ const TopDestinationList Statistics::totalTopDestinations()
     return m_totalTopDestinations;
 }
 
+void Statistics::initTrafficCounters()
+{
+    DBManager db;
+    m_dailyDownload = db.dailyDownloadTraffic();
+    m_dailyUpload = db.dailyUploadTraffic();
+    m_totalDownload = db.totalDownloadTraffic();
+    m_totalUpload = db.totalUploadTraffic();
+}
+
 void Statistics::actualizeTopLists()
 {
     QMutexLocker lock (&m_topDestinationsMtx);