* Test multiple python versions * Installation problems: remove pandoc from setup.py
0.4.1
* MIT License changed to Apache 2.0
0.4.0
* fracadf1 for const truncation order, and fracadf2 for flexible truncation order
0.3.0
* other loss function: DF statistics must be less than 1% critical value * fminbound solver instead of ridder * desired differentiation order range can be specified
0.2.0
* License changed from copyright to MIT * refactored from fury to pypi package manager * Python requirement changed to >=3.6
0.1.1
* prepared for GemFury pypi server * downgrade to py3.5 from py3.7