v.0.0.5 EC2 and ALB Security Group Configuration Ammended

Separate security group variables configured for the instance and the loadbalancer.

SSL Support for ALB

Merge pull request #3 from derBroBro/feature/support_ssl

Feature/support ssl

v0.0.3: Merge pull request #2 from derBroBro/feature/protect_behind_alb

Allow redesign of the execution. Concourse server is now behind ALB

Add option to define CoreOS version

v0.0.2

add option to define coreos version

v0.0.1

init