codahale 3 support with tests

  - sub-package metrics 3 project
  - port metrics-graphite for statsd usage
Merge pull request #6 from watsoncj/metrics-3.0.0-RC1

Metrics 3 Support
rename package of metrics3 functionality
readme updates
update readme
add logging for unresolvable hostname
Merge pull request #8 from watsoncj/logging

add logging for unresolvable hostname
Merge branch 'package-rename' of https://github.com/watsoncj/metrics-statsd into watsoncj-package-rename