Display transfer speeds at the beginning of the window title

The speeds are more likely to be displayed if the title is cut
in the window list.

Changelog

@@ -1,3 +1,6 @@
+* Unreleased - Christophe Dumez <chris@qbittorrent.org> - v2.9.0
+    - COSMETIC: Display speed at the beginning of the Window title
+
 * Thu Jun 02 2011 - Christophe Dumez <chris@qbittorrent.org> - v2.8.0
     - FEATURE: Added full libtorrent v0.16 support (uTP, ...)
     - FEATURE: Proxy can be disabled for peer connections

src/mainwindow.cpp

@@ -1106,7 +1106,7 @@ void MainWindow::updateGUI() {
     systrayIcon->setToolTip(html); // tray icon
   }
   if(displaySpeedInTitle) {
-    setWindowTitle(tr("qBittorrent %1 (Down: %2/s, Up: %3/s)", "%1 is qBittorrent version").arg(QString::fromUtf8(VERSION)).arg(misc::friendlyUnit(QBtSession::instance()->getSessionStatus().payload_download_rate)).arg(misc::friendlyUnit(QBtSession::instance()->getSessionStatus().payload_upload_rate)));
+    setWindowTitle(tr("[D: %1/s, U: %2/s] qBittorrent %3", "D = Download; U = Upload; %3 is qBittorrent version").arg(misc::friendlyUnit(QBtSession::instance()->getSessionStatus().payload_download_rate)).arg(misc::friendlyUnit(QBtSession::instance()->getSessionStatus().payload_upload_rate)).arg(QString::fromUtf8(VERSION)));
   }
 }