Html sanitizer fn
Add lastUsed to Block
Add recordIdUsage
Strip script tags
Merge branch 'master' into facia-tool-html-sanitizer
Merge branch 'master' into facia-tool-html-sanitizer
Do it in one map
Merge branch 'master' of github.com:guardian/frontend
Change to DateTime toString
Merge remote-tracking branch 'origin/master' into facia-config-seo
Add section tags to subjects list
Move / to a common place at Adam's behest
Ensure email preferences are sent to Identity on registration (previously just true values were sent).
Merge branch 'master' into always-send-email-prefs-on-register
Add tests for index page stuff
Merge pull request #5829 from guardian/always-send-email-prefs-on-register

Always send email prefs on register
Merge pull request #5828 from guardian/add-section-tags

Add section tags to subject index
Include series tags on subjects index
Updated footer links.
specify protocol of shared image's URL