Add latency measurement to lib/ping.js
Merge pull request #27 from CubixCraft/ping-latency

Add latency measurement to lib/ping.js
Fixes #20 for real this time...
fix ping module to pass tests
Release 0.6.6
fix ping tests. closes #28
Original skeleton changes.
Merge remote-tracking branch 'original/master' into bugfix-serverAsserts