Translate new keyword argument paragraph (it)
Merge pull request #174 from gcapizzi/keyword_args_it

Translate new keyword argument paragraph (it). Thanks, @gcapizzi.
Changes for running on Heroku

* .ignore: append .env for local testing using foreman.
* Gemfile, Gemfile.lock: add thin and rack-jekyll.
* Procfile: define web proc.
* config.ru: launch thin with rack.
Add documentation for preview on Heroku
Exclude 'config.ru' and 'Procfile'
Remove U+FEFF characters from post
Typo in the french security page
Some changes in README
Use include for mailing list subscription form (en)
Use variables for locales in subscription form (en)
Add missing locales for subscription form
Use include for mailing list subscription form
Add notice regarding broken subscription form
Update index.md

Fix unclear translation on zh-cn/doc 
PS:the whole doc is way too old
Merge pull request #180 from rhapsodyn/patch-1

Update documentation of zh_cn
Fix mailing list subscription form

Re-enables subscription via form by changing
the action url to newly created webservice.
Add missing 'code' class on mailing-lists page (ja)
Announce new ruby-lang.org (en)
:fr translation for the new website annonucement.
Typos (fr)