authInterceptor redirects to /login on 403 (but with beta redirects, does the right thing too)

Conflicts:
	app/assets/javascripts/app.js
add read and understand in email confirmation message
Fixup stray whitespace from last commit
Merge branch 'production' of https://github.com/databrary/databrary into production
new nav for prod
Message for #1190
Merge remote-tracking branch 'github/production' into excerpts

Conflicts:
	app/assets/javascripts/app.js
	app/assets/javascripts/interceptor/authInterceptor.js
	app/assets/stylesheets/common/_toolbars.less
	app/assets/templates/directive/toolbar.html
	public/images/logo/databrary-nav.png

All were resolved as ours (excerpts)