Tidy up log string
extend experiment
Move ab test segmentation to domReady
Log the ab test localStorage key on the diagnostics box
Remove test execution to prove segmentation is working
Merge branch 'master' of https://github.com/guardian/frontend into ab-segmentation-diagnostics

Conflicts:
	common/app/assets/javascripts/bootstraps/app.js
	common/app/assets/javascripts/modules/analytics/omniture.js
Merge pull request #1200 from guardian/ab-segmentation-diagnostics

Ab segmentation diagnostics