Добавил pg
Добавил group :development, :test

подключил rspec
Init rspec. Create empty User and Post specs.
reGenerate spec_helper. Add specs in user_spec.rb
add specs for email
Add validates
Add factory_girl_rails. Add factories.
Del @email
Delet blank files
Replace hash
Move root_path to home_conttroller
little cahnges
Delet blank helpers
Translate views
fix errors
Change hash. Delete commentary
Install simple_form
Fix errors
Add simple_form. Add simple_form in posts/form
Add simple form