Merge pull request #154 from aburrell/rc_0.6.0

Release Candidate v0.6.0

Merge pull request #146 from aburrell/rc_v0.5.0

RC v0.5.0

Merge pull request #137 from aburrell/rc_v0.4.0

RC v0.4.0

DOC: rename License.md

Wheel no longer recognizes License.md as a valid filename.

Merge pull request #90 from aburrell/rc_bug_0.2.1

REL: Bugfix release version 0.2.1

DOC: markdown needed for GitHub

GitHub requires the Markdown version of the Code of Conduct.

Update for future pypi

Update for future pypi release, and the addition of the pypi badge

Merge pull request #19 from aburrell/vort_and_smag_fix

Vort and smag fixes, improving comments, error messages, and expanding unit tests.