- BREAKING: to allow 0, false, and '0' as valid arguments for ms, tests had to be changed.
- removed: sourcemaps in dist version (additional size savings)
- fix: duration was incorrectly rounding to seconds, instead of only when part limiting
- fix: duration incorrectly handled sub-second durations (returned empty string)
- fix: last part in duration() should include remainder decimal, not just seconds
- BREAKING: changed getSeconds() --> toSeconds()
- added: toMs()
- added: toDuration()
- datePlus() remains the same
- maintenance: code-golfing!
- first public release