Remove unnecessary babel-preset-expo and transform-react-jsx-source.

Remove expo entirely (consuming project should include that itself if needed).
Update jest and snapshot.

Fix deprecation warnings for componentWillReceiveProps, ...WillUpdate.

RN 0.54 / React 16.3 logs deprecation warnings for componentWillReceiveProps and componentWillUpdate.
Remove extraneous setState in CalendarPicker componentDidUpdate.
Check that config prop has changed in Swiper componentDidUpdate before updating state.