Fixing permalinks to handle sort and to expand threaded comments
Merge remote-tracking branch 'origin/master' into jr-permalinks
improved the routes for discussions and sort order
Merge remote-tracking branch 'origin/master' into jr-permalinks
Adding Science to the US navigation
Enhance tweets when new updates arrive
Exclude development bundler group

Meaning all files in the :development bundler group will not be installed.

For example:

# group :development do
#   gem "scss-lint"
# end
Merge pull request #4141 from guardian/exclude-development-bundler-group

Exclude development bundler group
Merge pull request #4140 from guardian/tweet-new-things

Enhance tweets when new updates arrive
Merge remote-tracking branch 'origin/master' into jr-permalinks
Met the objections in https://github.com/guardian/frontend/pull/4112
css head mapping for commercial
formatting
Merge pull request #4112 from guardian/jr-permalinks

Jr permalinks
Merge pull request #4127 from guardian/add-science-to-nav

Adding Science to the US navigation
shift comments below onwards unless the user is signed in
Fix whitespace
Live blog updates follow the filter's ordering
lowercase id
Merge pull request #4145 from guardian/move-comments-below-onward-journeys

shift comments below onwards unless the user is signed in