Create es_ES.yml

just noticed the module has the old way of translating stuff... i used my lang builder module to get all the new translation strings. i hope this works.
ProductCategory::ProductsShowable now takes secondary membership via the many-many relation into account and also uses PaginatedList for better SS3.x support
Merge pull request #189 from markguinn/patch-productsshowable

ProductCategory::ProductsShowable improvements
It now takes secondary membership via the many-many relation into account and also uses PaginatedList for better SS3.x support. Unit tests updated.
Merge pull request #187 from dospuntocero/patch-1

Create es_ES.yml translation
Added note about payment module status
Sort needs to be BasePrice
Merge pull request #195 from NobrainerWeb/1.0

Category page sorting sorting needs to use BasePrice instead of Price
Merge branch '1.0' of https://github.com/burnbright/silverstripe-shop into 1.0