Reinstate default alias on Document constructor
Merge branch 'html5shiv' of github.com:Financial-Times/polyfill-service into html5shiv
Update test to match dependency data
Name it after the feature, not the polyfill
Add a detect for html5-elements
Alias html5shiv to html5-elements since that's likely to be what people will want to call it (but canonical name should remain feature-oriented)