URLs using HA-modes is not recognized by driver

Already fixed in CONJ-167

When using a connection URL with a specific HA mode (e.g. jdbc:mariadb:failover://host/db) this is not recognized by org.mariadb.jdbc.Driver.acceptsURL(String url).

This is a severe for DriverManager.getDriver(String url) as it relies on this method to function properly.

Current broken code that needs to accept a HA-URL:

    static boolean acceptsURL(String url) {

        return (url != null) &&

                (url.startsWith("jdbc:mariadb://") || url.startsWith("jdbc:mysql://"));

    }