Bump version from 3.0.0 to 3.0.1 (containing a bug fix)

Merge pull request #339 from yujiahu415/master

Update changelog.md

Update __init__.py

Update __init__.py

Update changelog.md

Update changelog.md

Update windows.md

Merge pull request #261 from yujiahu415/master

v2.9.0

Update changelog.md