Fixed role reporting in adminbar and logout nonce fix combination patch

[burtadsit]

This patch fixes up the 'role' determination for site admins in the adminbar. If you are site admin then the role determination function doesn't always report your role on blogs correctly. This patch just returns 'Admin' no matter what.

It also includes the patch for the logout problem described in ticket #228. Apply this and you get both.

Sorry. I was playing with the adminbar code to see what the problem was with logout and then after I sent in a patch for consideration I remembered the role goofyness.

[burtadsit]

Patch to fix adminbar role probs with site admin and also includes the logout fix

[apeatling]

Fixed, thanks for patch.