Added authentication with Devise, NOTE: you will have to add users manually.

rails c
Loading development environment (Rails 3.0.0.beta3)
irb(main):001:0> admin = Admin.create! do |u|
irb(main):002:1* u.email = 'sample@sample.com'
irb(main):003:1> u.password = 'password'
irb(main):004:1> u.password_confirmation = 'password'
irb(main):005:1> end

Signed-off-by: Michael Englehorn <Michael@Englehorn.com>
Fixed the readme.

Signed-off-by: Michael Englehorn <Michael@Englehorn.com>