Adds journey duration calculations
Adds a line showing time left to closing of a restaurant
Displays travel time on imbiss index page
Removes strings from models and adds translations
Repositions travel time message and changes it in case no opening times are available
Merge branch 'master' into timeLeft

Conflicts:
	app/locales/bl.yaml
	app/locales/de.yaml
	app/locales/el.yaml
	app/locales/en.yaml
	app/locales/ru.yaml
	app/locales/sv.yaml
	app/views/imbiss/index.html