fix: updated home's recent updated strip by week updated count logic.
fix: css's .link-color-dark to only usable in <a>tag.
fix: home's recent, ranking list's nums to 100 from 40.
fix: viewed comment number.
fix: compressed png.
fix: for Helvetica(IE) problem fixing.
fix: add search_controller and fix config/routes.
fix: impled navbar's searchbox (controller, view, css, js).