added juvia_rails plugin
started note about environment variables
hide the first header on languages survey (easier for development)
Merge remote-tracking branch 'origin' into juvia
basic styling for juvia comments
comment link helper
added comment view
removed group from languages survey
prevent confirm-modal from snapping to top when confirming
added comment links to questions
added back button to comment page
comment link styling
added translation for comment link
Merge remote-tracking branch 'origin' into juvia

Conflicts:
	README.md
	app/assets/stylesheets/application.css.less
	config/locales/surveyor_en.yml
update juvia rails to make use of theodi/juvia_rails#2
Merge remote-tracking branch 'origin' into juvia
scope certificate icons properly
added comment popover for the certificate
updated juvia init to use keys set at #609
Merge branch 'juvia', remote-tracking branch 'origin' into certificate-comments