Fixes #283

Changes the AWS profile to be a user-supplied variable, opposed to
statically being just `terraform`.

Terraform/terraform.tfvars.example

@@ -1,4 +1,5 @@
 region = "us-west-1"
+profile = "terraform"
 shared_credentials_file = "/home/user/.aws/credentials"
 public_key_name = "id_logger"
 public_key_path = "/home/user/.ssh/id_logger.pub"