fix api ActionView::MissingTemplate
refactoring respond_to
update gems
Merge branch 'master' into fix_api_missing_template
fix multiple renders
Merge pull request #423 from abf/rosa-build:fix_api_missing_template
 fix ActionView::MissingTemplate
Merge branch 'master' into update_gems
platforms_for_build return hidden platforms
 (use a availables_main_platforms method)
fix mistype in the diff commits view
Merge pull request #424 from abf/rosa-build:update_gems
 update gems
remove requiring 'emoji/railtie'
move emoji to the public folder
fix emoji images path
fix emoji cheatsheet
show images in the diff
Merge pull request #425 from abf/rosa-build:remove_emoji_images
 remove emoji from assets