Add version to window title (#613)

Also updated the translation files for missing strings and updated the Polish translation.

src/lobby.cpp

@@ -12,8 +12,9 @@ Lobby::Lobby(AOApplication *p_ao_app) : QMainWindow()
 {
   ao_app = p_ao_app;
 
+
   //
-  this->setWindowTitle(tr("Attorney Online 2"));
+  this->setWindowTitle(tr("Attorney Online %1").arg(ao_app->applicationVersion()));
   this->setWindowIcon(QIcon(":/logo.png"));
   this->setWindowFlags( (this->windowFlags() | Qt::CustomizeWindowHint) & ~Qt::WindowMaximizeButtonHint);
 

src/packet_distribution.cpp

@@ -268,7 +268,7 @@ void AOApplication::server_packet_received(AOPacket *p_packet)
 
     courtroom_loaded = false;
 
-    window_title = tr("Attorney Online 2");
+    window_title = tr("Attorney Online %1").arg(applicationVersion());
     int selected_server = w_lobby->get_selected_server();
 
     QString server_address = "", server_name = "";