Registration front-end notice for address formatting

Job Doesburg
2018-11-05T11:54:03+01:00

### One-sentence description Show notice for address formatting on thalia registrations page in front end. ### Why? For international student from, i.e. Great-Britain, address formatting is weird. They put the house number in front. Now this produces an unclear error message. ### Current implementation An unclear error message ### Suggested implementation Either a clear error message (or example how you should format your address), or acceptance of more ways of formatting.