Passport v0.5.3

[jaredhanson]

This release reverts a change introduced in passport@0.5.1 so that passport.initialize() extends the request with login(), logIn(), logout(), logOut(), isAuthenticated(), and isUnauthenticated(). This matches the behavior of passport@0.5.0 and all prior versions.

For more information, see the announcement on the blog and details in the CHANGELOG.