Updated list_all_services, request_pb2, display error reporting.

list_all_services.py and request_pbs.py are modules from the M&C
DirectoryService:

/home/gbt2/monctrl/14.4/ygor/DirectoryService/Python/

The error reporting update is just to print out a full stack trace
instead of the top-most message when an exception is thrown.
Hopefully we'll never need to see these stack traces!
Added in a bunch of files copied from the M&C release.

Many, if not all, of these are probably not needed locally
but I want to have them here for now so that the display
project is more or less self contained.