Add regions to clsConfig to make it easier to find functions
Added code to allow user to specify computer groups to exclude from various endpoint faults. Still need to code for endpoints.
Remainder of previous commit
* Added a column to endpoint problems to show which downstream server the PC is connected to.  Only shows for endpoints not communicating and default SUS IDs so far.
* Add some more statistics to the default screen - update count, computers requiring updates, total number of computers, computers with update errors and updates still to be downloaded.  Refreshes every 60 seconds.