[NewFeature] init project
[NewFeature] category management
[NewFeature] category management
[NewFeature] article management
[NewFeature] use twitter-bootstrap-rails gem
[NewFeature] customing category views with twitter-bootstrap-rails gem
[NewFeature] customing article views with twitter-bootstrap-rails gem
[NewFeature] edit article detail
[NewFeature] edit article detail
[Change] format article
[NewFeature] customing article and detail pages