Add gems. Rewrite test code.
Feature: blog comment
Fix tests
Order blog post
Add test. coverage :100:
Apply review, fix tests
Add file
Add empty view file
Delete capybara gem, and move test from features to controllers
Apply review, fix tests
Add application_helper test. coverage :100:
Rename activerecord.yml -> activerecord.ja.yml
Add null constraint to blog body
Fix BetterErrors config
Remove not-used files
Remove user-implement part.