Added "shouldCollectVAT" method

Merge pull request #18 from mpociot/analysis-XVr5PK

Applied fixes from StyleCI

Added polish validation rule message

Merge pull request #12 from kduma/master

Polish validation message translation

Added support for `vat-taxrate` as an extra field for the JS frontend integration.

1.6.1

Updated changelog

Added support for setting your own "business country code"

Merge pull request #9 from mpociot/analysis-8Qo4mq

Applied fixes from StyleCI

Romania reduces VAT to 20% in 2016

1.5.5

Romania reduces VAT to 20% in 2016