Translate 2014-03-14-rubyconf-taiwan-2014-registration-now-open [vi]
Translate 2014-02-24-ruby-2-0-0-p451-is-released [vi]
Fix recent news posts (vi)

Rename file, fix publication dates, markdown and some typos.
Rewrap news post (vi)
Merge pull request #721 from stomar/vi-posts

Translate recent news posts (vi)