Add support for gauges
Remove sampling section from README as the current implementation doesn't work that way. It's implemented on increment only and not timing, not sure that even makes sense.
Merge pull request #1 from jwheare/master

Gauge support and remove Sampling section from README
Fix gauge logging key
Merge pull request #2 from jwheare/master

Changes the gauge logging key from gauge.Key to stats.gauges.Key
Support for Erlang VM metrics remorting
Separation of VM stats based on node() value
Rename some metrics
Calling node_key() only once; tabs to spaces
Metrics regrouping
Merge pull request #3 from blinkov/master

Support for Erlang VM stats reporting
Merged upstream