bump v to 0.3.2 and add more classifiers for PYPI

Auto epochs: wider range of auto-epochs: 10-1000 (ourownstory#570)

* make epoch range wider

* update test

Merge remote-tracking branch 'origin/master'

Update CONTRIBUTING with commands for black, unittests

Update README.md

Update README.md

update version number

Merge pull request ourownstory#115 from ourownstory/normalize-positive

Normalize data options

fix re-scaling of predicted components

Update README.md