0.6

Adds IPv6 support

Thanks @nsideb

0.5

v0.5

More accurately limit run time

0.4

v0.4

Add option to limit run time

0.3

Don't panic for missing target IP, exit cleanly.

More idiomatic, zeroed vector using vec! macro.

Don't use sleep_ms

0.2

v0.2

Adjust default parameters. Update readme.