start EM server on 0.0.0.0 rather than localhost
start EM server on 0.0.0.0 rather than localhost

localhost won't always work on an arbitrary network setup. 0.0.0.0 should
always work, and listen on all interfaces.

Change-Id: Ib99b93952043458ef21d4d2e6d8193e3077fe930

cloudfoundry-attic/caldecott-client,cloudfoundry-attic/caldecott-client