Basics for a new app

www.agileplannerapp.com/boards/173808/cards/7897

Includes:

* Gems needed for testing: RSpec, Database cleaner, factory_girl, Webmock..
* RSpec configuration files
* SimpleCov for test coverage
* Unicorn web server
* Airbrake gem for exception reporting
* Logstasher
* Database settings and PG gem for postgresql
* Jenkins build scripts