New MetricPublisher that has yet to be used for anything.
Switch to using MetricPublisher in MetricManager instead of subclassing Publisher. Still needs more tests.
Tests for manager setup with and without publisher and channel.
Pretend MetricManager is a publisher a little harder for some vumi-go tests.
Metrics message broker test helpers.
Use new metrics test helpers.
Fix fake_amqp clearing missing exchanges.
Allow oneshot metrics to be published without the manager polling.
Remove accidentally included random files.
publish_oneshot_metrics -> publish_metrics
No need for optional publisher in publish_metrics().
Interface for MetricPublisher.
Split publisher and poller stuff in MetricManager.
Merge branch 'feature/issue-761-split-metric-manager-from-publisher' into develop
Merge branch 'develop' of github.com:praekelt/vumi into develop