Version v3.4

Make flake8 work

Version v3.3

Fix datetime issues for min/max setting in Figure.

v3.2

Version v3.2

v3.1

Version 3.0.1

Version v3.0

Add Figure and color.
Refactor some code.

v2.1: Version 2.1

Fix rst display on pypi…

v2.0: Version 2.0

* Have a dedicated `Canvas` class for simple and pretty printing.
* Have another ‘usual’ histogram.
* More tests.
* Most of the interfaces are only extended, so should be compatible to v1.5.
* Some improvements.

v1.5

Fix constant plot (#1)

Version v1.4

* no copy of X, Y in plot
* fix display ranges for hist (0, 1)
* display center of bucket in hist

Version v1.3

* Improve linear interpolation.
* Implement `scatter` as a call of `plot` w/o interpolation.
* No sorting of points for `plot`.