- UserEmailProvider -> UserLdapNameProvider
- Email -> RZ-Login
Merge branch 'master' of https://github.com/AStA-Wedel/Kasse.git

Conflicts:
	src/main/java/org/fhw/asta/kasse/client/widget/basket/BasketWidgetImpl.ui.xml
	src/main/java/org/fhw/asta/kasse/server/service/CheckoutServiceEndpoint.java