Initial commit for supporting partial localization of TOS and PP

Conflicts:

	lib/static/views.js
	resources/static/dialog/views/required_email.ejs
	resources/static/dialog/views/set_password.ejs
	resources/static/dialog/views/verify_primary_user.ejs
	resources/views/dialog.ejs
	resources/views/layout.ejs
	resources/views/signin.ejs
Adding path to log message per jedp
Merge pull request #3580 from mozilla/issue-3375-localize-tospp-merge-dev

Support localization of TOS and PP