DDBNEXT-968 Sort favorites with Locale.GERMAN, respecting Umlauts
DDBNEXT-968 Added assignment as the sorting is not always done in-place,
depending on the type of the Collection.
DDBNEXT-968 favorites ordering dependant on currently selected Locale
Merge branch 'DDBNEXT-968-bro' into develop

Conflicts:
	grails-app/controllers/de/ddb/next/FavoritesController.groovy