OTHER: implement playtime and playback controls in playlistwindow

src/mainwindow/mainwindow.cpp

@@ -79,6 +79,12 @@ MainWindow::MainWindow (QWidget *parent) : BaseWindow (parent)
 	setCentralWidget (m_display);
 	m_display->show ();
 
+	//connects for timedisplay in playlistwindow
+	connect (m_display, SIGNAL (displayTime (int)),
+	         m_playlistwin, SIGNAL (setDisplayTime (int)));
+	connect (m_playlistwin, SIGNAL (toggleTime()),
+	         this, SLOT (toggleTime ()));
+
 	/*
 	 * MainDisplay's shaded mode
 	 */