Use a custom Vagrant box for direct-lvm support

Use a home-grown base box for development which brings improved performance,
flexibility, and initial developer experience.
Allow docker type build from a repo with additional directory
Merge pull request #249 from ironcladlou/vagrant-direct-lvm

Merged by openshift-bot
Merge pull request #195 from soltysh/card346

Merged by openshift-bot
Added DOCKER_REGISTRY envvar to build scripts, for backward compatibility
Merge pull request #271 from bparees/master

Added DOCKER_REGISTRY envvar to build scripts, for backward compatibility