Signed-off-by: Suhaib Khan <suheb.work@gmail.com>

Reference beanstalkd-console host port environment variable in docker-compose.yml

This pull request references the of `BEANSTALKD_CONSOLE_HOST_PORT` from the `.env` file in the `docker-compose.yml`. Prior to this PR, the environment variable was defined in the `.env` file but was not used.

Add Apache Solr  Test

Added support for Apache Solr

Support Prestissimo

Install Prestissimo in Workspace

Update php-fpm/Dockerfile-72 add IMAP support

Added IMAP installation to PHP-FPM container

update nvm to 0.33.8

Optimize travis ci job

Change php settings

Add PHP 7.2 support and fix issues on 5.6-7.0-7.1 versions

Install deployer from phar

Add PHP72 Test

Support custom composer repo url and npm registry url

Remove blank lines in php-fpm/Dockerfile70&71