update// added rederfcuntion to contactlist (causes segfaul on compiling)

src/mainwindow.cpp

@@ -985,10 +985,15 @@ void MainWindow::setupTransactionsTab() {
 
 void MainWindow::updateChat()
 {
-    qDebug() << "Called MainWindow::updateChat()";
     rpc->refreshChat(ui->listChatMemo);
 }
 
+void MainWindow::updateContacts()
+{
+    qDebug() << "Called MainWindow::updateContacts()";
+    rpc->refreshContacts(ui->listContactWidget);
+}
+
 void MainWindow::addNewZaddr(bool sapling) {
     rpc->createNewZaddr(sapling, [=] (json reply) {
         QString addr = QString::fromStdString(reply.get<json::array_t>()[0]);