Add metrics, scala-metrics and hooks for instrumenting things.
Add global to pick up stuff at onstart for future actor things.
Moar automated collection bits.
Wrap the metrics calls in a condition around the config option.
Nix global cuz the scheduling ain't gonna happen.
Add FD usage, yay!
Merge branch 'master' into PLAT-51-scheduled-metrics
remove useless code
Merge pull request #6 from keenlabs/PLAT-51-scheduled-metrics

Add metrics to capillary.