let's try it with Spree 1.2.0
Hackfix to update taxons with the current language
A much better solution to the problem solved in the previous commit
dejamos que spree maneje asignación de cantidades

fallan bastantes tests del core debido a estos métodos
It avoids the options to be overwritten!
Valor por defecto para params[:lang]
Merge branch 'master' of github.com:the-cocktail/spree_multi_lingual