- Fixed compilation warning

src/GUI.cpp

@@ -442,7 +442,7 @@ void GUI::previewFile(QString filePath) {
   QDesktopServices::openUrl(QString("file://")+filePath);
 }
 
-unsigned int GUI::getCurrentTabIndex() const{
+int GUI::getCurrentTabIndex() const{
   if(isMinimized() || isHidden())
     return -1;
   return tabs->currentIndex();

src/GUI.h

@@ -158,7 +158,7 @@ class GUI : public QMainWindow, private Ui::MainWindow{
     GUI(QWidget *parent=0, QStringList torrentCmdLine=QStringList());
     ~GUI();
     // Methods
-    unsigned int getCurrentTabIndex() const;
+    int getCurrentTabIndex() const;
     QPoint screenCenter() const;
 };