Eager loading
[REFACTORING]Use scope instead of includes method
Eager loading at Api::Snippetscontroller
Merge pull request #108 from iiirc/n+1

Solve N+1 problem
Use thread for PubsubhubbubNotifier#notify

If the method blocks, it keep user waiting until post is over.
It slows response time especially when posting to many hubs.
Joining to main thread is not needed because user and application
need not know whether posting is succeeded or not. We can see it by log.
Merge pull request #109 from iiirc/pubsubhubbub-thread

Use thread for PubsubhubbubNotifier#notify
[BUG FIX]Return total star count when starred
Merge pull request #111 from iiirc/#110-star-count-bug

[BUG FIX]Return total star count when starred
Consider If-Modified-Since in /snippets.atom
Fix condition to determine format to render
Fragment cache for each snippet in Atom feed
Merge pull request #112 from iiirc/cache-on-atom

Consider If-Modified-Since in /snippets.atom
Snip older snippets in /snippets.atom
Merge pull request #113 from iiirc/snip-snippets

Snip older snippets in /snippets.atom
Calcurate cache key for each snippet in decorator
Cache partial snippet
Calcurate nick color offset in SnippetDecorator
Add @organizations to top_controller.rb
@KitaitiMakoto @banyan top で表示したかったのでコピペで追加してしまいましたが、大丈夫でしょうか？
Cache snippert partial in HTML
Merge pull request #114 from iiirc/html-cache

HTML cache