New version: 1.4.2 with #30 (updated list of events)

Update list of GitHub Webhook events with 'pull_request_review_thread'

Breaking change, errors are now rendered as 404 instead of 500

Use sha256 signature from GitHub webhook headers

Updated list of GitHub Webhook events

Version 1.1.2

Update github event list

Internal refactoring

Add GitHub Marketplace related events

Add integration events to processor whitelist