Replace dead railsapi.com with lively RubyDocs.org
Translate Ruby 2.1.2 is released(ko)
2.0.0-p481
Merge pull request #741 from unak/2-0-0-p481

2.0.0-p481
style
style
update latest 2.0 packages on download page
upgrade jekyll-2.0
Translate 2.0.0-p481 (ko)
update ruby 2.1.2 for travis
Translate 2.1.2 is released (zh_tw).
Translate 2.0.0-p481 is released (zh_tw).
Merge pull request #737 from JuanitoFatas/tw/2-1-2-is-released

Translate 2.1.2 & 2.0.0-p481 is released (zh_tw).
Translate vi/news/_posts/2014-05-09-ruby-2-1-2-is-released.md [vi]
draft for cve-2014-2734
Update 2014.03.29 heap overflow CVE post (zh_tw).

According to the latest releases of Ruby 2.1.2 & 2.0.0-p481.
apply @zzak's feedback
Small fixes in recent news posts
Fix link in news post (zh_tw)
Fix links in recent news posts