v0.5.0

Added

• A linter to verify that no enum uses the option allow_alias.
• The --protoc-url flag can now handle references to local protoc zip files
  as well as normal http references by handling urls of the form
  file:///path/to/protoc.zip.

Changed

• The formatter now prints primitive field options on the same line
  as the field.
• The commands binary-to-json, clean, descriptor-proto, download,
  field-descriptor-proto, json-to-binary, list-all-linters,
  list-all-lint-groups, list-linters, list-lint-group, and
  service-descriptor-proto are deleted to reduce the surface area
  for the v1.0 release.
• The commands list-all-linters and list-linters are now flags
  on the lint command.
• The flags --cache-path and --print-fields are deleted to reduce the
  surface area for the v1.0 release.
• The option lint.group in the prototool.yaml configuration is deleted
  to reduce the surface area for the v1.0 release.
• The command protoc-commands is now accessible via the --dry-run
  flag on the commands compile and gen.
• The grpc command now takes the flags --address, --method, and --data
  or --stdin as opposed to parsing these from variable-length command args.
• If more than one prototool.yaml is found for the input directory or files,
  an error is returned.
• The prototool binary package is moved under internal.