add gitignore
remove database.yml
create models
Gemfile, add ancestry, acts_as_commentable
rails g comment
annotate
model adjustment
Gemfile removes rails-api gem
Gemfile adds devise
devise install
create devise admin_user
gov model, add eng_name
application_controller, add authenticate_user!
create welcome_controller. generate devise user views
update gitignore
application_controller, ActionController::API changes to ActionController::Base
before_filter :authenticate_admin_user!
Gemfile adds assets group and jquery
create login part