message: extract sha and url from gitlab hook
diff: @@ -51,6 +51,8 @@ export default function extractWebhookData(req: Req, body?: string): WebhookRequ
  } else if ('x-gitlab-event' in req.headers) {
  webhooktype = 'gitlab'
  event = req.headers['x-gitlab-event']
  + uuid = bodyObj.checkout_sha
  + giturl = bodyObj.project.git_ssh_url
  } else if ('x-event-key' in req.headers) {
  webhooktype = 'bitbucket'
  event = req.headers['x-event-key']
  