Release 2.5.0 · Shopify/ruby-style-guide

Link: Release 2.5.0 · Shopify/ruby-style-guide: "What's Changed

Enable Layout/EmptyLineAfterGuardClause cop by @sambostock in #348 Enable Style/GlobalStdStream by @casperisfine in #350 Allow 'webmaster' for Naming/InclusiveLanguage b..."