Tracking id for worldwide locations and orgs
Ensure analytics identifier on create
Use latest slimmer for World Locations GA support
Slimmer headers to report analytics for WL & WO
Slimmer headers to report analytics on WL Editions
Slimmer headers to report analytics on WL Orgs
Extracted out common AR callback
Add Worldwide Org to slimmer header for GA
Moving out data migrations to correct place
Splitting out tests to convey intent clearly
More WO & WL pages covered

- World Location Pages set Organisations customVar
with identifiers for all related organisations and
their sponsoring organisations
- Worldwide Organisation pages include sponsoring
organisations in Organisations customVar
Merge pull request #1276 from alphagov/analytics-for-wo-wl

Google Analytics for WO & WL

https://www.pivotaltracker.com/story/show/65738236