[Pulp-list] username/password auth pushed

[Mike McCune]

I added the ability for our RoleCheck class to also check for uname/pass 
missmatch (and existence of the user) as well as some unit tests for 
this new functionality.

Since I don't have the client functional yet in passing up the uname and 
password I took out all the RoleCheck() decorations in our Controllers 
until I can finalize this feature that is very close to being done. 
Should wrap it up when I get back next week.

Mike
-- 
Mike McCune
mmccune AT redhat.com
Red Hat Engineering       | Portland, OR
Systems Management        | 650.254.4248