Adding AWS code deploy files

- app spec file forms basis of application deploy
- various AWS specific files to install dependencies and call upstart for start and stop application

scripts/aws_install_dependencies.sh

@@ -0,0 +1 @@
+pip install -r /home/ubuntu/notifications-api/requirements.txt

scripts/aws_start_app.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+echo "Starting application"
+cd ~/notifications-api/;
+sudo service notifications-api start

scripts/aws_stop_app.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+echo "Stopping application"
+cd ~/notifications-api/;
+sudo service notifications-api stop