Address #100 by adding support for MariaDB (@green-coder). Set NEXT_JDBC_TEST_MARIADB=true as well as NEXT_JDBC_TEST_MYSQL=true in order to run tests against MariaDB.

Before you start the upgrade, make sure to upgrade to the latest available 3.5.x version. This will make sure that you are building against the most recent dependencies of that line. Please take time ...