Remove PUBLIC site auth option (except admins); change NONE text

Fixes #2319
Remove broken asset remove link
Upgrade angular to 1.2.24
Cleanup jslint warning
Merge branch 'production'

Conflicts:
	app/assets/javascripts/form/authGrantForm.js => app/assets/form/authGrantForm.js
	app/views/widget/panel/asset.scala.html => app/views/asset/view.scala.html