Began testing roleprovider a little.
Did some work on the Roles' views.
Finally got the SFRoleProvider to be able to add roles to users in the
database. Presumably, NHibernate's transaction was locking up the database
and preventing execution of commands in other connections (i.e., the one
used in SFRoleProvider). Also ditched the idea of using connection
pooling. Added two methods to SFRoleProvider to manage the connection
manually.