ENH a little spring cleaning (civisanalytics#26)

DOC Update to v2.0.1 (civisanalytics#23)

DOC Update CHANGELOG for v2.0.0 release (civisanalytics#21)

BUG fix package versions to avoid installing MKL (civisanalytics#9)

* BUG make sure conda env is consistent wrt use of MKL
* ENH pin conda to 4.1.11
* DOC updated release date

Initial commit