Conculde Vagrant VM

[mlewand]

Currently we have some configuration, and a short instruction on how to create a build. VM image has not been published, and is nowhere to be found.

It will fix #167.

[AnnaTomanek]

Additionally, the VM needs to be top-notch, up-to-date, and must not require you to perform updates, checks and what-not in order to work...

[f1ames]

Few things I noticed:

• The vm folder with Vagrantfile is only in vagrant branch so to build from master you have to switch to vagrant branch run vagrant up and then back to master or do other tricky things. vm should be probably inmaster branch.
• To update java version in vagrant you can use provisionals as described here, e.g.

config.vm.provision "shell", inline: <<-SHELL
    sudo apt-get install -y software-properties-common python-software-properties
    echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | sudo /usr/bin/debconf-set-selections
    sudo add-apt-repository ppa:webupd8team/java -y
    sudo apt-get update
    sudo apt-get install oracle-java8-installer
    echo "Setting environment variables for Java 8.."
    sudo apt-get install -y oracle-java8-set-default
SHELL

So as @AnnaTomanek mentioned we should probably upgrade and simplify build process using Vagrant.