[MariaDB Packagers] MariaDB 10.1.40 release prep

Prep work for the MariaDB 10.1.40 release has begun. Expected release date is Wed, 08 May 2019. This release is to fix a bug with new installs on CentOS/RHEL 6. Draft release notes and changelog: - https://mariadb.com/kb/en/mdb-10140-rn/ - https://mariadb.com/kb/en/mdb-10140-cl/ As usual, the release notes and changelog are still in draft form at this time and will be updated prior to release. Thanks. -- Daniel Bartholomew, MariaDB Release Manager MariaDB | https://mariadb.com