Bump Jackson and Bson4Jackson 2.9 to fix Jackson vulnerabilities CVE-2017-17485, CVE-2018-5968, CVE-2018-7489, CVE-2018-5968 and enhance Annotation extensibility
Changelog: https://github.com/bguerout/jongo/milestone/8?closed=1
Commits: releases/1.3.x...1.4.0