Changes

# Allow profiles to be marked with 'private key/cert DB's. This will changeThe Mozilla app from a Mode 3A app to a Mode 2A app. This will return developers to their previous semantic if they want, while allowing them toalso test the interaction of different profiles and the same database. It wouldrequire UI changes to the profile manager, and it will require action on thepart of the developer to get back to the old semantic.# Treat only the default profile as Mode 3A and all other profiles as Mode 2A.This will allow profile separation to operate as is today with no changes. Itdoes mean, however, that only default profiles will share keys with appllicationapplication.