pt-BR ToWords added

[akamud]

This doesn't support gender differences for portuguese language, but handles all the others cases described here

[MehdiK]

Thanks a lot for this. As mentioned in #15 this needs to be changed to use the new approach implemented in #149. I think this pulls the rug under your feet; so you might actually have to close this one, pull the latest and add your code based on the new approach.

Please also add your PR to the release notes file.

[akamud]

I'll be doing the new implementation in a different branch later today.

[MehdiK]

Sorry for this. Thanks :)

[joaomatossilva]

I don't know the specific in pt-BR, but "pt-PT",
[InlineData(1000000000, "um bilhão")] is incorrect. it's "mil milhões".
http://pt.wikipedia.org/wiki/1000000000
http://pt.wikipedia.org/wiki/Escalas_curta_e_longa

[akamud]

I think we'll have to differentiate pt-PT from pt-BR. I was wondering if there were any differences.
In pt-BR is definitely "um bilhão".

[joaomatossilva]

http://www.languagesandnumbers.com/como-contar-em-portugues-europeu/pt/por-prt/
here you have the european portuguese rules.

btw, I was looking at the code and found out that if (ConverterFactories.TryGetValue(CultureInfo.CurrentUICulture.TwoLetterISOLanguageName, out converterFactory)) don't support pt-BR and pt-PT distinction.

I'll open a ticket for this, since it's another matter

[akamud]

Yes @kappy, I noticed that problem yesterday. But I thought there were no differences in counting, so I just implemented it as it would work for both. Clearly we'll have to treat them differently.

I'll be back home in 8 hours, we could discuss a way to treat that.