Merge pull request #302 from joneslee85/trans-9

Translate We Use Fastly CDN [vi]
Adding a note about Ruby on Ales to the community conference page.
Merge pull request #303 from amerine/roa

Adding a note about Ruby on Ales to the community conference page.
update jekyll-1.2.0
upgrade jekyll-1.2.1
added dependency kramdown
announce to release 2.1.0-preview1
Merge pull request #304 from ruby/2.1.0-preview1

Announce to release 2.1.0-preview1
pre block of package infomation is wrong indent and more links
CDN information move to above section
use download url via fastly
Translate Ruby 2.1.0-preview1 is released (zh-TW).
adds 2.1.0-preview1 news for zh_cn
Translate title of Ruby 2.1.0-preview1 is released (zh-TW).
Translate Ruby 2.1.0-preview1 is released (es)
Translate Ruby 2.1.0-preview1 (fr)
Review Ruby 2.1.0-preview1 (fr)

Signed-off-by: chatgris <jboyer@af83.com>
Review Ruby 2.1.0-preview1 (fr) 2

Signed-off-by: chatgris <jboyer@af83.com>
Merge pull request #306 from ruby/fr-2.1.0-preview1

Translate Ruby 2.1.0-preview1 (fr)
Fix typo in Ruby 2.1.0-preview1 is released (es)