Fix in German RBNF numbering-year

[sascha]

The numbering-year rules for spelling out year numbers in German seem to have a few bugs:

• year 2000, 2001, 2002 and following should be “zweitausend”, “zweitausendeins”, “zweitausendzwei” etc. instead of “zwanzighundert”, “zwanzighunderteins”

• year 1000, 1001, 1002 etc. should be “tausend”, “tausendeins”, “tausendzwei” etc. instead of “eintausend”, “eintausendeins”, “eintausendzwei”

• year 100, 101, 102, 103 and following should be ”hundert”, “hunderteins”, “hundertzwei”, “hundertdrei” etc. instead of “einhundert”, “einhunderteins”

[mark]

Agreement from Markus.

[grhoten]

This sounds like English style.

[grhoten]

Actually, I just read the first part line. The other two parts actually get into a philosophical discussion. The current rules in German for all numbers don't make the 1 in one thousand optional (AKA the ein in eintausend). So for consistency, we're going to need agreement for all numbers on whether the singular magnitudes omit the 1. This shouldn't be just about years. I suspect that only part of these rules were reviewed instead of the entirety of the German rules.