Added the required initialization to start the docker swarm cluster.
Converted yet more dos format files to unix format. Updated the
document on building voltha on a QEMU/KVM virtualization environment
using vagrant. Added a configuration file for the install vagrant to
eventually enable multiple users on a single compute node all able to
run independent voltha docker swarm clusters as VMs. More work is
required to finalize multi-user test mode which will be submitted in a
subsequent update.

This update continues to address Jira VOL-6

Change-Id: I88bc41aa6484877cb76ad38f8bab894f141cebdb
diff --git a/install/ansible/roles/docker/tasks/debian.yml b/install/ansible/roles/docker/tasks/debian.yml
index 8eed0ff..d9f3f37 100644
--- a/install/ansible/roles/docker/tasks/debian.yml
+++ b/install/ansible/roles/docker/tasks/debian.yml
@@ -24,7 +24,7 @@
 - name: Debian docker-py is present
   pip:
     name: docker-py
-    version: 1.6.0
+    version: "{{ docker_py_version }}"
     state: present
   when: target == "installer"
   tags: [docker]
@@ -32,7 +32,7 @@
 - name: netifaces pip package is present
   pip:
     name: netifaces
-    version: 0.10.4
+    version: "{{ netifaces_version }}"
     state: present
   when: target == "installer"
   tags: [docker]
@@ -49,7 +49,7 @@
   when: copy_result|changed and is_systemd is defined
   tags: [docker]
 
-- name: vagrant user is added to the docker group
+- name: Sudo user is added to the docker group
   user:
     name: "{{ ansible_env['SUDO_USER'] }}"
     group: docker