[cloudformation] add signifyd-cf-deploy script
[cloudformation] remove elb wait condition from platform template
[cloudformation] use detected elb name instead of hardcoded string
[signifyd-cf-deploy] prepend log messages with severity
[signifyd-cf-deploy] disregard status of instances unless in new asg
update Gemfile for latest knife-cloudformation
Merge branch 'feature/cf-deploy-wrapper' into play_2_2

Conflicts:
	Gemfile.lock