Add initial generators

[techpeace]

Before we have Yeoman-style generators via #4, let's create some standard Rails generators.

• User model
• Rails router
• Bot router
• Base chunk
• Chunks
• Welcome chunk
• Bot base controller
• Bot controllers
• Default controller
• Welcome controller
• Bot initializer
• Autoload
• ENV
• Base bot
• User migration (if user class already exists)
• Project init (orchestrator)

http://guides.rubyonrails.org/rails_application_templates.html

[techpeace]

Does module_namespacing from the default model template give us what we want?