Remove unused legacy trailblock fragments and CSS
Guard against Bad Masterclass Data
Fix Keywords for Commercial Components
Merge branch 'master' into kc-component-keywords
Format Commercial Component Request Correctly

Add correctly formatted keywords to requests.
Merge pull request #4467 from guardian/kc-component-keywords

Use Keyword IDs to Match Commercial Components
Remove unnecessary space on top of related container
overlay has higher z-index than advert
Merge pull request #4473 from guardian/issue-4472

Give overlay higher z-index than advert
Use correct tracking links for smart app banenrs
Merge pull request #4475 from guardian/smart-banner-link

Use correct tracking links for smart app banenrs
Merge pull request #4436 from guardian/remove-trails

Remove unused legacy trailblock fragments and CSS
Merge pull request #4470 from guardian/identity-template-rename

Remove underscores from id templates
Adding profile info to profile pages