Migrating from a ruby script to a bash script

Since the role of this script is to setup a development machine,
depending on ruby makes no sense, since the user will ever need
python and ansible.
Changing command to run ansible installation
Corrects when ag task notifies it changed the system
Restructures vim tasks and notifications
Includes task for installing node.js
Includes a new role container with vagrant installation
Updating command to run the script on docs
Includes language package dependency on source_control_systems