Added missing translation markup to the data tab

. #85
Merge branch 'trans' into feature/frontend

Fixed conflicts in:
	Dashboard/app/js/lib/locale/all_locales.js
	Dashboard/app/js/templates/application/footer.handlebars
	Dashboard/app/js/templates/navData/bulk-upload.handlebars
	Dashboard/app/js/templates/navData/data-cleaning.handlebars