rename partials into application
Fix _navigation.html.slim
Change navigation.html.slim
upgrade rails to 4.1.5
Change application.html.slim
Merge pull request #213 from fs/upgrade-rails

upgrade rails to 4.1.5
Merge branch 'master' of https://github.com/fs/rails-base into 206-Rename-partials-folder-into-application-folder
Merge pull request #209 from fs/206-Rename-partials-folder-into-application-folder

Rename app/views/partials folder into app/views/application folder
Merge branch 'master' of https://github.com/fs/rails-base into 174-clean-up-i118-locale-files
Change structure of locale files