full_title helper
rails g devise:views
remove .keep files
use simple_form
use simple_form+bootstrap and haml templates for devise views
add admin attribute - use validations for email and password
https://github.com/plataformatec/devise/blob/master/lib/devise/models/validatable.rb
http://jessewolgamott.com/blog/2011/12/08/the-one-where-devise-validations-are-customized/
add a bunch of standard validation-related specs
ignore log/ folder from ack results, and add a few more types