Auto merge of #199 - olleolleolle:refactor/contrib, r=duckinator
Auto merge of #199 - olleolleolle:refactor/contrib, r=duckinator

Refactor: introduce pretty_date(date)

This is a refactoring PR.

- Combine `#pretty_start_date` and `#pretty_end_date` into `#pretty_date(date)`
- Move a method to a better ordering

See #194.

duckinator/how_is,duckinator/how_is,duckinator/how_is,duckinator/how_bad,duckinator/how_bad