decorate links
[Sitemap] style and I18n
[Contacts] fix flash message
changed to ruby 1.9 syntaxe
changed logger to STDOUT in development
added annotate gem
added rack-mini-profiler
[Category] added posts_count
[Category] changed HABTM to has_many through between categories and posts
[PostsController] includes categories to be a better performance
changed spec to tabs