Upgraded MariaDB4j dependency from v2.1.1 to v2.1.3, to fix Windows problem

@vishwasbabu this finally fixes that "mysql_install_db was not found, neither in bin/ nor in scripts/ under ..." Windows problem you know of (see https://github.com/vorburger/MariaDB4j/issues/19) for the self contained standalone java -jar *.war launcher.