- Rename locals, enabled by default
    - Rename globals, disabled by default

Other changes:
    - Minified code will no longer have leading or trailing whitespace
    - Generated names for hoisted literals will have an initial underscore if rename globals is disabled
    - Suites of simple statements won't create an indented block
    - All transforms are now functional on all supported python versions
    - The module docstring is not removed by the remove literal statements transformation if there is a name bound for it

Fixes:
    - Python 3.7 dataclass field annotations are no longer removed when the remove annotation transformation is enabled.