Add Russian language

Add Russian language file
Added support for limit_section_entries
Merge pull request #4 from alexbirukov/master

Add Russian language
Add Russian language

Add Russian language file
Merge branch 'master' of github.com:Solutions-Nitriques/save_and_return into dev
Merge branch 'dev' of github.com:Solutions-Nitriques/save_and_return into dev
Merge branch 'dev' of github.com:Solutions-Nitriques/save_and_return