Update README with correct development build instructions
Remove old dependencies
Track stats in a separate stats module, fixes #9
docfix
Move calculation for mean latency out of ElbPing::Display, contributes to #9
Move loss calculation outside of ElbPing::Display, further fixes #9
Rename the keys for stats tracked by ElbPing::Stats
LatencyBucket: only return ms as int
Shorten ElbPing::Display.summary
docfix [skip ci]