Bump module versions (#12)

* Bump `terraform-null-label` version to `0.3.1`

* Bump `terraform-aws-route53-alias` version to `0.2.3`

* Bump `terraform-aws-s3-log-storage` version to `0.1.3`

main.tf

@@ -1,5 +1,5 @@
 module "origin_label" {
-  source     = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.2.1"
+  source     = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.3.1"
   namespace  = "${var.namespace}"
   stage      = "${var.stage}"
   name       = "${var.name}"
@@ -65,7 +65,7 @@ resource "aws_s3_bucket" "origin" {
 }
 
 module "logs" {
-  source                   = "git::https://github.com/cloudposse/terraform-aws-s3-log-storage.git?ref=tags/0.1.2"
+  source                   = "git::https://github.com/cloudposse/terraform-aws-s3-log-storage.git?ref=tags/0.1.3"
   namespace                = "${var.namespace}"
   stage                    = "${var.stage}"
   name                     = "${var.name}"
@@ -79,7 +79,7 @@ module "logs" {
 }
 
 module "distribution_label" {
-  source    = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.2.1"
+  source    = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.3.1"
   namespace = "${var.namespace}"
   stage     = "${var.stage}"
   name      = "${var.name}"
@@ -162,7 +162,7 @@ resource "aws_cloudfront_distribution" "default" {
 }
 
 module "dns" {
-  source           = "git::https://github.com/cloudposse/terraform-aws-route53-alias.git?ref=tags/0.2.2"
+  source           = "git::https://github.com/cloudposse/terraform-aws-route53-alias.git?ref=tags/0.2.3"
   aliases          = "${var.aliases}"
   parent_zone_id   = "${var.parent_zone_id}"
   parent_zone_name = "${var.parent_zone_name}"