Added future dates to Resources.pt-BR.resx.

New unit tests created in  Humanizer.Tests/Localisation/pt-BR/DateHumanizeTests.cs
Changed past date tests in pt-BR/DateHumanizeTests.cs to use DateHumanize.Verify() instead of Assert.Equal.
Added "now" to Resources.pt-BR.resx.
Moved field closer to the property where it is used in Configurator.
Merge branch 'add-future-dates-ptBR' of https://github.com/Holmed/Humanizer into pt-br-future
minor cleanup + adding the PR to the release-notes
Merge branch 'pt-br-future'