v2.0.0-beta

New major version that changes approach of using DJS.

CHANGELOG

1. Uses Vagrant to deploy Jenkins on host machine in Linux Container.
2. Vagrant machine is ready to run nested containers, and has docker preinstalled and configured
3. Docker images are published into Docker Hub
4. All workflow should be done through one entrypoint: djs.sh script in root of repository. See details in README (Getting Started section)