create vagrant ads-on-centos box with openvz in it

[ksripathi]

[ksripathi]

Document for running ADS from existing vagrant box : https://github.com/vlead/setup-ovpl-centos/blob/develop/user-docs/run-ads-using-vagrant-box.org#run-ads-on-existing-vagrant-box
Document for creating vagrant box which comes with ADS : https://github.com/vlead/vlead-templates/blob/develop/vagrant-boxes/setup-ads-on-centos.org

Vagrant box published : http://files.vlabs.ac.in/downloads/vagrant-boxes/ads-on-centos.box