heroku addons:add heroku-postgresql
	
heroku addons:add heroku-postgresql:dev
	
//this function connects to the Heroku postgres db
function pg_connection_string(){
        return "dbname=dcs1k5588jbfad host=ec2-54-243-224-162.compute-1.amazonaws.com port=5432 user=###user_name### password=######### sslmode=require"; 
}