Fix bug #192: Remove the focus from the console when console is closed

(set current keyFocusWidget to nullptr)

apps/openmw/mwgui/console.cpp

@@ -139,6 +139,9 @@ namespace MWGui
     void Console::disable()
     {
         setVisible(false);
+        // Remove keyboard focus from the console input whenever the 
+        // console is turned off
+        MyGUI::InputManager::getInstance().setKeyFocusWidget(nullptr);
     }
 
     void Console::setFont(const std::string &fntName)