Bump src/hm9000

Bump cloudfoundry/hm-workspace:
  Onsi Fakhouri and Sarah Chandler:
     bump hm9000: metrics_server prints out user/pass/port; pulled out common app code ( Travis created: https://travis-ci.org/cloudfoundry/hm-workspace/builds/12530269 )
  Onsi Fakhouri and Phan Le:
     update to etcd v0.1.2 ( Travis Success: https://travis-ci.org/cloudfoundry/hm-workspace/builds/12443702 )
     add travis build to readme ( Travis Success: https://travis-ci.org/cloudfoundry/hm-workspace/builds/12441822 )
     add travis.yml for hm-workspace ( Travis Success: https://travis-ci.org/cloudfoundry/hm-workspace/builds/12441651 )