Merge pull request #421 from guardian/tag-query

Reverted Tag page query.
Log the state as soon as the article has been read.

This captures people who come to us (views) and read the article in full
and who do not create an onwards journey.
Merge pull request #423 from guardian/reading-delegate

Log the state as soon as the article has been read.
Sheepish jshint fixes
Merge branch 'master' of github.com:guardian/frontend into front-logging