Database connection dialog

Small change to the way RGP handles dropped database connection. At the moment there pops up a dialog with an exception that needs user action to close (to close dialog or application). Every now and then we need to reboot our server. After this we need to manually make sure all the application are running (check-in machine expecially).

It would be nice to make error handling for the DB connection dropping and for example freeze the application until connection is working again. You could create a timer to check every n-seconds if DB connection works again and when it's back online, then un-freeze application?

Thanks