create templates for basic rails applications setups

For example we should have one setup like:

Simple App (default generap configuration)

- redis
- memcached
- sidekiq
- postgresql

 

Oauth Authentication App

- Simple App
- Omniauth Setup with documentation of how to add
  - facebook
  - twitter
  - google
  - etc

Database Read Replicas

Aha! Link: https://saasler.aha.io/features/GENAPP-10