Fix untitled synonyms
Update styling
Set public cache headers
Fix books spec
Change styling of related notes list
Merge remote-tracking branch 'upstream/staging' into staging

Conflicts:
	app/assets/stylesheets/themes/default.css.sass
Enable page indexing

Remove noindex metatag and write cronjob to generate sitemap.
Update google analytics code

Update to Universal analytics.
Update gems
Update gems
Update settings
Merge remote-tracking branch 'upstream/staging' into staging

Conflicts:
	app/views/application/_google_analytics.html.slim
	config/schedule.rb