Add support for metrics on actors
Fixes for cross-compile; simplify Counter again
Merge changes from upstream master
Re-integrate actor metrics, future metrics with latest changes
Add more scaladoc; make future metrics more natural to use
Reintroduce partial functions; use MetricRegistry.name for naming metrics
Fix isDefinedAt for PF metrics
Add copyright notices, improve scaladoc
Update actor metrics to delegate to PF metrics
Merge pull request #8 from scullxbones/metrics-3-for-actors-and-futures

Add support for metrics on actors