added metrics publishing helper class
ensure correct format for metric signature
Merge branch 'feature/issue-5-use-yaml-config' of github.com:praekelt/url-shortening-service into feature/issue-6-push-metrics-to-graphite
updated metric name and added tests
added failing test for metrics
Switch to our own graphite/carbon client.
Merge branch 'develop' of github.com:praekelt/url-shortening-service into feature/issue-6-push-metrics-to-graphite
use carbon client to publish metrics
updated tests to include metrics published
updated example config in README
move carbon client startup to setUp
use .splitlines() in tests
Merge pull request #6 from praekelt/feature/issue-6-push-metrics-to-graphite

Add handlers for logging to graphite