Revert "Change to v2.1.0"

This reverts commit 3627c33c52848e6007fe32b4bf0353ff8e5ffe05.
Revert "Change to v2.0.0"

This reverts commit 3041ff538e1159097d0136e61c6e65866d6c9c98.
Revert "Change to v1.1.0"

This reverts commit 0c487f235508783978712d69693e05cd6a370aa2.
Revert "Change to v1.1.0"

This reverts commit 78e1fdc453d9a708e604923a1e28562c5bd32661.
Revert "Chang to v2.0.0"

This reverts commit dc1b4f8d43b58fda4d945079fb87f12cd3206faf.
Revert "Updated library"

This reverts commit 6c7053ff6c3a4bd0e6352e06d8f5edaf02748410.