Deploy with MariaDB

[tv0ll]

Saves a step for the user when deploying ONLYOFFICE.

[LinneyS]

Thanks for contributing to ONLYOFFICE. Nevertheless, we have made decision to revert your changes because:

• there is no need in additional steps in the installation process. Script set_configuration.sh already enables the ONLYOFFICE app;
• updates on the official documentation can’t be placed on any third-party service;
• at the moment we prefer to keep the minimal list of containers by default.

However, we find the idea of adding a separate container with the database for Nextcloud interesting. We surely will extend the configuration settings.