@fluent/syntax 0.16.0

• Remove the compat.js build and compile everything to ES2018. (#472)

  TypeScript source code is now compiled to ES2018 files in the esm/
  directory. These files are then bundled into a single index.js UMD file
  without any further transpilation.

  The compat.js build (available as @fluent/syntax/compat) was removed.
  Please use your own transpilation pipeline if ES2018 is too recent for
  your project.

  Refer to https://github.com/projectfluent/fluent.js/wiki/Compatibility
  for more information.