Playing with Symfony 3 stuff

Implemented:

• CRUDs for User, Article, Comments
• login system based on GuardAuthenticator User credentials
• AsyncBundle with producer & consumer. It sends test email using RabbitMQ. Not forget to run command bin/console rabbitmq:consumer brother_mailer
• Fixtures to load. Just run command bin/console hautelook:fixtures:load
• Grid for Users based on APYDataGridBundle
• Yarn package manager with webpack-encore library added. Using Yarn Bootstrap, JQuery libs added. To build assets run: yarn run encore dev. To watch simple JS function in assets/js/main.js just uncomment require('./greet'); function and lines below.