Web Administration; When Database Settiings are saved, the User Interface is now blocked with a friendly message

Changing any of the settings on the Database Settings form and saving them forces Web Services to return to the login form.

However, since Web Services are restarting at this point, it may take up to 20 seconds or so in which time the Web Administration User Interface appeared as normal which could be confusing.

The User Interface is now blocked with the message "Web Services are restarting, please wait..." until the login screen is displayed.