Update circleci for different cluster names in dev and prod

Author: mtwomey

deploy.sh

@@ -6,6 +6,7 @@ JQ="jq --raw-output --exit-status"
 ENV=$1
 TAG=$2
 AWS_REGION=$(eval "echo \$${ENV}_AWS_REGION")
+AWS_ECS_CLUSTER=$(eval "echo \$${ENV}_AWS_ECS_CLUSTER")
 ACCOUNT_ID=$(eval "echo \$${ENV}_AWS_ACCOUNT_ID")
 
 configure_aws_cli() {