v3.2.0: Merge pull request #165 from ptrimble/master
- add 'valid year' functionality to definitions - #33 - (thanks to https://github.com/ttwo32)
- Fix 'day after thanksgiving' namespace bug during definition generation (thanks to https://github.com/ttwo32)
- fix Danish holidays 'palmesondag and 1/5 (danish fightday)' to set to informal (thanks to https://github.com/bjensen)