Ruby 2.2.0 Released
fix typo
add 2.2.0
Use data of the final version
add xz url
Merge branch 'ruby-2.2.0' of https://github.com/nurse/www.ruby-lang.org into nurse-ruby-2.2.0
use previous20
references Rails 5.0 feature plan
removed WIP and use Ruby term
Merge branch 'nurse-ruby-2.2.0'