chore(release): 4.2.2 [skip ci]

## [4.2.2](googlemaps/google-maps-services-python@v4.2.1...v4.2.2) (2020-04-24)

### Bug Fixes

* use timezone-aware timestamp() instead of timetuple() ([googlemaps#350](googlemaps#350)) ([fc69668](googlemaps@fc69668))

chore(release): 4.2.1 [skip ci]

## [4.2.1](googlemaps/google-maps-services-python@v4.2.0...v4.2.1) (2020-04-23)

### Bug Fixes

* add python requires attribute to setup.py ([c61a1e3](googlemaps@c61a1e3)), closes [googlemaps#345](googlemaps#345)

chore(release): 4.2.0 (googlemaps#346)

docs: fix changelog for v4.0.0

docs: fix changelog for v4.0.0

chore: release v3.1.4 (googlemaps#329)

release 3.1.3 (googlemaps#320)

travis conditional: tag to tags (googlemaps#316)