Display hours without seconds
Merge branch 'master', remote-tracking branch 'origin' into opening_hours

Conflicts:
	app/models/OpenTimes.php
	app/views/dishes/index.html
	app/views/imbiss/index.html
don't display if no opening hours at all
adds translation for opening hours
Merging master
Merge branch 'master' of https://github.com/SEP007/lmvc-patat into opening_hours
Merge branch 'opening_hours'