Add dokerfile with php 7.1

Add dockerfile with php-fpm 7.1

Certbot container

Add mailhog for mail debugging

Fix issue 619

Gohstscript support

Refine container name retrieval

Changed to `docker ps` because this one word wraps.  `docker-compose ps` will create a newline if text is too long in a small terminal window.  Also `awk` represents tokens better than ones created with a " " delimiter.

see https://github.com/docker-library/php/issues/133

see https://github.com/SeleniumHQ/docker-selenium#running-the-images

https://github.com/creationix/nvm/releases/tag/v0.33.1

Add minio container

This reverts commit d95b52b7.

Minio is an s3 compatible server written in go.

* fix php warning in php-fpm: "Unable to load dynamic library aerospike"

* 	fix php warning in php-fpm: "Unable to load dynamic library aerospike"

* simplify solution

* Update Dockerfile-56

* Update Dockerfile-70

This updates the download URL to include the DNS provider plugins so that we can use letsencrypt on our local environment. One thing to note, the version is not currently available as part of the dynamic download URL so this may need looking at in the future.

* 'master' of https://github.com/laradock/laradock:
  update readme text

New docs