Update page header, page footer and top page.
Fix price in the top page.
Update intro page.
Create price page.
Create feature page.
Create tokusyou page.
Create twitter correction page.
Change reset.css to normalize.css.
Update correctors home page.
Fix a regression.
Fix a page title and some html tags.
Show the sidebar into admin pages.
Update mypage.
Update correction result page (student side).
Add a link to correction page for correctors and administrators.
Update about devise pages.
Implement PR mail agreement. Fix spaces between form fields. Fix faild tests.
Send notice mail when correction completed.
Don't send notice mail to twitter only student when correction completed.