Style/Next
Style/HashSyntax

Standardize on hash_rockets
Style/GuardClause
Remove spurious `begin`
Remove unused module
Clarify that this is a monkeypatch
Fix top-level constant warning
Style
Stricter params parsing
Consistent log signatures
Randomize ports
Fix the benchmarks
Other rubies need pry too
Remove useless ivars
Specs pass under JRuby now!
Merge pull request #234 from tamird/rubocop-stuff

various cleanup
Fix deprecation warning logic

- `ENV['PB_IGNORE_DEPRECATIONS']` now only controls field deprecations,
  as indicated in the documentation. Protobuf internal deprecations
  are always printed.
- Field deprecations now only print when the field is actually
  deprecated, and provide a more useful message.
Remove RPC functionality
Service is a top-level constant