azavea/nyc-trees — pull request #55 by hectcastro (2014-11-04 14:32:53+00:00)
Title: Remove SNS topic from VPC CloudFormation stack

Instead of creating the SNS topic used for global stack notifications inside of the VPC stack, it seems better to create it outside of CloudFormation so that we can associate it with all other CloudFormation stacks. This will allow us to get notifications more easily when stacks are modified.