0.004   2018-12-17 (PERLANCAR)

	- Add overloads: cmp, eq, ne.

	- Render nanosecond in stringify().

	- [ux] from_hms(): Allow hh:mm in addition to hh:mm:ss.


0.003   2018-12-16 (PERLANCAR)

	- Add compare() and overloading of <=>.


0.002   2018-12-16 (PERLANCAR)

	- Add constructors from_hms() & from_float(). Add float().

	- Some tweaks/fixes.


0.001   2018-12-15 (PERLANCAR)

         - First release.