REGENS v0.2.0c release

respecifies allowable python versions for pypi to include 3.7.0 through 3.7.9

REGENS v0.2.0b release

changed release version to v0.2.0b in order to make the version number consistent with pypi

regens with automated installation

v0.2.0

changed username to __token__

first release of regens

simulates autosomal genotypes with realistic LD patterns