Fix link for translate 2014-12-25-ruby-2-2-0-released [vi]
Updated 2014-12-25-ruby-2-2-0-released.md (bg)
Updated semantic versioning to handle #779 (ru).
Merge pull request #954 from gmitrev/update-news-ruby-2-2-0-bg

Updated 2014-12-25-ruby-2-2-0-released.md (bg)
Merge pull request #951 from nhattan/fix_link_translate-ruby-2-2-0

Fix link for translate 2014-12-25-ruby-2-2-0-released [vi]
Merge pull request #953 from arbox/fb_779

Updated semantic versioning to handle #779 (ru).
Fix 2.2.0 post (vi)
Remove trailing whitespace (vi)
Fix link to mirrors on downloads page (vi)
Unify download links
Translate Ruby 2.2.0.rc1 news (pl)
Translate latest news (pl)
Update dowloads section for new Ruby release (pl)
Fix links and typos in recent posts (pl)
Mention preinstalled Ruby version on Yosemite (en)
Translate ruby installation documentation [vi]