Prepare 0.2.0 release
Prepare 0.2.1 release
Revert "Prepare 0.2.1 release"

This reverts commit 5d4deeeb7eb8437480fc7a3182df9213e35f3306.
Revert "Prepare 0.2.0 release"

This reverts commit 5f2ff48edad393a3c9903577185bb3dbdc074d11.
Prepare 0.1.2 release