slack-client-1.14

What's Changed

• New Release: slack-client-1.13 by @hs-jenkins-bot in #325
• Remove deprecated method SlackEvent::toDetailedEvent(), upgrade basepom, apply prettier formatting by @jaredstehler in #323
• Add files to slack event model by @ykaliukh in #326

Full Changelog: slack-client-1.13...slack-client-1.14