A new playbook to build and deploy the edX app.

Based on jarv/continuous-integration.

playbooks/edx-east/feanil_deploy.yml

+- hosts: tag_aws_cloudformation_stack-name_feanilpractice:&tag_group_edxapp
+  sudo: True
+  vars_files:
+    - "{{ secure_dir }}/vars/edxapp_continuous_integration_vars.yml"
+    - "{{ secure_dir }}/vars/users.yml"
+  roles:
+    - common
+    - nginx
+    - gunicorn
+    - ruby
+    - npm
+    - edxapp