Management security not picking up user's AuthenticationManager in secure method sample

[dsyer]

See question on StackOverflow: http://stackoverflow.com/questions/23174275/configure-actuator-enpoints-security/23176998?noredirect=1#comment35451713_23176998

[dsyer]

I think this is just a bug in the sample, since the AuthenticationManager it builds is a local one for the filter chain containing "/login", whereas the Boot default is a "global" AuthenticationManager. I'll push a change that fixes the test.