Bastion AMI will be custom built, so make it a parameter
Add support for IAM instance profiles to app server ASG
Add VPC stack parameters file
Fix TODO description
Add CloudFormation template for tile servers
Add AWS CLI to deployment requirements
Centralize CloudFormation template generation into a Makefile
Add ELB endpoint outputs for app and tiler
Easier to read when ports are all on one line
Add comment to signal that outputs begin here
Remove references to UsePreviousValue
The tag argument was removed
The t1.micro instance type does not support Redis persistence
Keep things small for the early stages
Add multi-AZ RDS and ElastiCache (Redis)
Add CloudFormation parameter files for each stack
Add README section for deployment