* v4:
  test suite doesn't pass cleanly
  prepare already runs build
  v4.0.0-github.0
  Ignore package tarballs
  Resume building non-minified ES entrypoint
  revert to master
  Expose an ESM-FULL bundle which includes optimizely deps
  Standardize ESM bundle
  Generate both min and non-min esm output
  exports option for es output is redundant. auto is best
  Use rollup --config- options for specifying bundles
  Build-all by default
  build various bundles using --config-* param
  chore: Prepare for 4.0.0 release (optimizely#468)
  fix: Removed React Native client engine temporarily (optimizely#466)
  chore: Prepare for 4.0.0-rc.2 release (optimizely#465)
  chore: Add source maps to build output (optimizely#464)
  fix(project config): Don't mutate the datafile object (optimizely#462)
  chore: Prepare for 4.0.0-rc.1 release (optimizely#461)
  chore: Prepare for js-sdk-datafile-manager 0.5.0 release (optimizely#460)
  chore(datafile manager): Remove react native datafile manager entry from package.json (optimizely#459)
  fix(datafile manager): Node datafile requests use gzip,deflate compression (optimizely#456)
  docs(datafile manager): Removed manual dependency installation requirement from docs (optimizely#457)
  chore(datafile manager): Added async storage as dev dependency (optimizely#455)
  refactor: Added a separate bundle for Json Schema Validator (optimizely#454)
  refactor: Convert lib/utils to ES module (Part 2/2) (optimizely#452)
  refactor: Convert lib/core to ES module (Part 2/2) (optimizely#450)
  chore(datafile manager): Update years in header comments (optimizely#453)
  refactor: Convert lib/core to ES module (Part 1/2) (optimizely#449)
  refactor: Convert lib/utils to ES module (Part 1/2) (optimizely#451)
  refactor: Convert lib/optimizely/* and lib/tests/* to ES module (optimizely#448)
  refactor: Convert lib/plugins from CJS to ES module (optimizely#427)
  chore: Update js-sdk-utils to 0.2.0 (optimizely#447)
  refactor: Convert entry points to es module and create minified bundles (optimizely#445)
  chore: Update CHANGELOG.MD for jsonSchemaValidator change (optimizely#443)
  Change functionality of JSON schema validation by removing skipJSONValidation entirely. Now a user needs to import jsonSchemaValidator from @optimizely/optimizely-sdk/lib/utils/json_schema_validator and pass it to createInstance when validation is desired. (optimizely#442)
  chore(datafile manager): Lint and formatting fixes for datafile manager tests (optimizely#441)
  [OASIS-6102]: changed functionality of the JSON schema validator module (optimizely#438)
  chore(datafile manager): Fix ESLint warnings & errors, apply Prettier formatting (optimizely#440)
  fix (datafile-manager): Fix boolean types, remove StaticDatafileManager, update READMe, add eslint + prettier (optimizely#436)