﻿version 1.0, 2012-07-08 -- initial release

version 1.01, 2012-07-09 -- edited README

version 1.1, 2013-02-20 -- reset_units() runs on first import, and corresponding
changes to documentation. Also, don't mess up the random number generator
state, in case something else is using it. Added units pW, fF, aF.

version 1.11, 2013-02-21 -- fix packaging (edit MANIFEST.in so README gets
included).

version 1.12, 2013-06-22 -- fix packaging (remove UTF-8 BOM in .py files,
which seem to cause pip errors in python 3)

version 1.13, 2013-08-11 -- add more units related to moles and molarity

version 1.14, 2016-02-16 -- add millikelvin etc., and unicode aliases Å,
ħ (note that unicode identifiers only work in Python 3)

version 1.15, 2016-07-09 -- add angular frequency units Hz·2π, kHz·2π,
etc. (note that unicode identifiers only work in Python 3)

version 1.16, 2016-12-25 -- add prefixed newtons (mN, kN, etc.), edit file
so that code completion libraries are more likely to find the unit names.

version 1.17, 2017-07-22 -- add hartree energy, switch packaging from sdist to bdist_wheel

version 1.18, 2017-11-11 -- add easier-to-read unicode aliases for ohms (Ω, mΩ, kΩ, etc.)
and a few more constants (μ0, ε0, σSB, αFS). (note that unicode identifiers only work in Python 3)

version 1.19, 2017-11-12 -- no code change, just edited README.

version 1.21, 2018-02-07 -- add rtHz, rpm, rpm·2π

version 1.22, 2018-11-04 -- add horsepower_imperial and horsepower_metric, update all values to
CODATA as of July 2018.

version 1.23, 2019-05-23 -- add a smoke test; drop support except 2.7+ and 3.4+ (still probably
works for older versions but I'm not promising); random initializations now span more orders of
magnitude; update to latest CODATA.

version 1.24, 2019-11-29 -- drop support for python 2; update to latest CODATA; add more
acceleration-related units.

version 1.25, 2020-11-07 -- add nu_eval() function.