Update external_metric_test.rb
Update cli.rb
[check-source] event_summary() helper, using check "source"
[check-source] added tests for the event_summary() helper
Merge pull request #73 from portertech/feature/check-source

Provide event_summary() helper
version bump, 1.0.0
Merge pull request #72 from orangey/master

space separator for graphite metrics