Extra top padding for cover node.
Smaller font size for authors.
Some more spacing on cover.
Consider section labels.
Merge branch 'ui_refactor' into ams
Fix merge regression.
Merge branch 'section_labels' into ams
Merge branch 'master' into ams
Merge branch 'master' into ams
Fix regression (do not render inline-formulas as <a> tag)
Preparation for generalizing TOC API.
Merge branch 'master' into ams

Conflicts:
	nodes/heading/heading_view.js
TOC rendering for headings.
DOI is now stored without url prefix.